Gradle Test Run :respect-lib-cache:jvmTest[jvm]
givenEntryIsStale_whenRequestedWithValidationHeader_thenResponseShouldBe304NotModified[jvm]
summary
|
100%
successful |
error output
Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog FINEST: [VERBOSE] UstadCache - OKHttp-CacheInterceptor: intercept: GET http://localhost:58969/testfile1.png Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog INFO: [INFO] UstadCache - UstadCache(): Retrieve http://localhost:58969/testfile1.png Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog FINE: [DEBUG] UstadCache - UstadCache(): MISS http://localhost:58969/testfile1.png Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog FINE: [DEBUG] UstadCache - OKHttp-CacheInterceptor: newCacheAndStoreResponse: GET http://localhost:58969/testfile1.png 200 (OK) Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog FINE: [DEBUG] UstadCache - OKHttp-CacheInterceptor: MISS http://localhost:58969/testfile1.png 200 OK (contentType=image/png, content-encoding=null content-length=133184) Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog FINE: [DEBUG] UstadCache - UstadCache(): store request for 1 entries Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog FINEST: [VERBOSE] UstadCache - UstadCache(): copied request data for http://localhost:58969/testfile1.png to /tmp/junit13608949528874731854/cachedir/tmpWork/1.tmp (integrity=sha256-hlfF4oGFRfane2XiRyLv02LtOJ4Va2UanpQV0im/K8I=) Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog FINEST: [VERBOSE] UstadCache - UstadCache(): cacheEntries created 1 entries Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog FINEST: [VERBOSE] UstadCache - OKHttp-CacheInterceptor: intercept: GET http://localhost:58969/testfile1.png Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog INFO: [INFO] UstadCache - UstadCache(): Retrieve http://localhost:58969/testfile1.png Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog FINE: [DEBUG] UstadCache - UstadCache(): FOUND http://localhost:58969/testfile1.png Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog FINE: [DEBUG] UstadCache - OKHttp-CacheInterceptor: validated : returning 304 as per validation params 304 OK (contentType=image/png, content-encoding=null content-length=0) Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed