NullPointerException in ClientListenerRegistry under load --------------------------------------------------------- Key: ISPN-5797 URL: https://issues.jboss.org/browse/ISPN-5797 Project: Infinispan Issue Type: Bug Components: Expiration, Listeners Affects Versions: 8.0.1.Final Reporter: Martin Gencur Assignee: William Burns This exception occurs when sending a lot of Get/Put requests for entries with predefined lifespan and listening for ClientCacheEntryExpired events. {code} 17:40:06,781 INFO [org.radargun.RemoteMasterConnection] (sc-main) Response successfully sent to the master [0m[31m17:40:06,924 ERROR [org.infinispan.interceptors.InvocationContextInterceptor] (async-thread--p5-t17) ISPN000136: Execution error: org.infinispan.commons.CacheListenerException: ISPN000280: Caught exception [java.lang.NullPointerException] while invoking method [public void org.infinispan.server.hotrod.ClientListenerRegistry$BaseClientEventSender.onCacheEvent(org.infinispan.notifications.cachelistener.event.CacheEntryEvent)] on listener instance: org.infinispan.server.hotrod.ClientListenerRegistry$StatelessClientEventSender@32997e78 at org.infinispan.notifications.impl.AbstractListenerImpl$ListenerInvocationImpl$1.run(AbstractListenerImpl.java:291) at org.infinispan.util.concurrent.WithinThreadExecutor.execute(WithinThreadExecutor.java:21) at org.infinispan.notifications.impl.AbstractListenerImpl$ListenerInvocationImpl.invoke(AbstractListenerImpl.java:309) at org.infinispan.notifications.cachelistener.CacheNotifierImpl$BaseCacheEntryListenerInvocation.doRealInvocation(CacheNotifierImpl.java:1213) at org.infinispan.notifications.cachelistener.CacheNotifierImpl$BaseCacheEntryListenerInvocation.invokeNoChecks(CacheNotifierImpl.java:1208) at org.infinispan.notifications.cachelistener.CacheNotifierImpl$BaseCacheEntryListenerInvocation.invoke(CacheNotifierImpl.java:1185) at org.infinispan.notifications.cachelistener.CacheNotifierImpl.notifyCacheEntryExpired(CacheNotifierImpl.java:448) at org.infinispan.commands.write.RemoveExpiredCommand.notify(RemoveExpiredCommand.java:112) at org.infinispan.interceptors.locking.ClusteringDependentLogic$AbstractClusteringDependentLogic.notifyCommitEntry(ClusteringDependentLogic.java:137) at org.infinispan.interceptors.locking.ClusteringDependentLogic$DistributionLogic.commitSingleEntry(ClusteringDependentLogic.java:546) at org.infinispan.interceptors.locking.ClusteringDependentLogic$AbstractClusteringDependentLogic.commitEntry(ClusteringDependentLogic.java:114) at org.infinispan.interceptors.EntryWrappingInterceptor.commitContextEntry(EntryWrappingInterceptor.java:482) at org.infinispan.interceptors.EntryWrappingInterceptor.commitEntryIfNeeded(EntryWrappingInterceptor.java:660) at org.infinispan.interceptors.EntryWrappingInterceptor.commitContextEntries(EntryWrappingInterceptor.java:459) at org.infinispan.interceptors.EntryWrappingInterceptor.invokeNextAndApplyChanges(EntryWrappingInterceptor.java:533) at org.infinispan.interceptors.EntryWrappingInterceptor.setSkipRemoteGetsAndInvokeNextForDataCommand(EntryWrappingInterceptor.java:564) at org.infinispan.interceptors.EntryWrappingInterceptor.visitRemoveCommand(EntryWrappingInterceptor.java:255) at org.infinispan.commands.write.RemoveCommand.acceptVisitor(RemoveCommand.java:59) at org.infinispan.interceptors.base.CommandInterceptor.invokeNextInterceptor(CommandInterceptor.java:99) at org.infinispan.interceptors.base.CommandInterceptor.handleDefault(CommandInterceptor.java:113) at org.infinispan.expiration.impl.ExpirationInterceptor.handleWriteCommand(ExpirationInterceptor.java:60) at org.infinispan.expiration.impl.ExpirationInterceptor.visitRemoveCommand(ExpirationInterceptor.java:30) at org.infinispan.commands.write.RemoveCommand.acceptVisitor(RemoveCommand.java:59) at org.infinispan.interceptors.base.CommandInterceptor.invokeNextInterceptor(CommandInterceptor.java:99) at org.infinispan.interceptors.locking.AbstractLockingInterceptor.visitNonTxDataWriteCommand(AbstractLockingInterceptor.java:95) at org.infinispan.interceptors.locking.NonTransactionalLockingInterceptor.visitDataWriteCommand(NonTransactionalLockingInterceptor.java:40) at org.infinispan.interceptors.locking.AbstractLockingInterceptor.visitRemoveCommand(AbstractLockingInterceptor.java:71) at org.infinispan.commands.write.RemoveCommand.acceptVisitor(RemoveCommand.java:59) at org.infinispan.interceptors.base.CommandInterceptor.invokeNextInterceptor(CommandInterceptor.java:99) at org.infinispan.statetransfer.StateTransferInterceptor.handleNonTxWriteCommand(StateTransferInterceptor.java:356) at org.infinispan.statetransfer.StateTransferInterceptor.handleWriteCommand(StateTransferInterceptor.java:288) at org.infinispan.statetransfer.StateTransferInterceptor.visitRemoveCommand(StateTransferInterceptor.java:123) at org.infinispan.commands.write.RemoveCommand.acceptVisitor(RemoveCommand.java:59) at org.infinispan.interceptors.base.CommandInterceptor.invokeNextInterceptor(CommandInterceptor.java:99) at org.infinispan.interceptors.CacheMgmtInterceptor.visitRemoveCommand(CacheMgmtInterceptor.java:209) at org.infinispan.commands.write.RemoveCommand.acceptVisitor(RemoveCommand.java:59) at org.infinispan.interceptors.base.CommandInterceptor.invokeNextInterceptor(CommandInterceptor.java:99) at org.infinispan.interceptors.InvocationContextInterceptor.handleAll(InvocationContextInterceptor.java:102) at org.infinispan.interceptors.InvocationContextInterceptor.handleDefault(InvocationContextInterceptor.java:71) at org.infinispan.commands.AbstractVisitor.visitRemoveCommand(AbstractVisitor.java:48) at org.infinispan.commands.write.RemoveCommand.acceptVisitor(RemoveCommand.java:59) at org.infinispan.interceptors.base.CommandInterceptor.invokeNextInterceptor(CommandInterceptor.java:99) at org.infinispan.interceptors.base.CommandInterceptor.handleDefault(CommandInterceptor.java:113) at org.infinispan.commands.AbstractVisitor.visitRemoveCommand(AbstractVisitor.java:48) at org.infinispan.commands.write.RemoveCommand.acceptVisitor(RemoveCommand.java:59) at org.infinispan.interceptors.InterceptorChain.invoke(InterceptorChain.java:336) at org.infinispan.cache.impl.CacheImpl.executeCommandAndCommitIfNeeded(CacheImpl.java:1634) at org.infinispan.cache.impl.CacheImpl.removeExpired(CacheImpl.java:567) at org.infinispan.expiration.impl.ClusterExpirationManager.removeExpired(ClusterExpirationManager.java:111) at org.infinispan.expiration.impl.ClusterExpirationManager.lambda$handleLifespanExpireEntry$224(ClusterExpirationManager.java:102) at org.infinispan.expiration.impl.ClusterExpirationManager$$Lambda$29/1473436203.run(Unknown Source) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:745) Caused by: java.lang.NullPointerException at org.infinispan.server.hotrod.ClientListenerRegistry$BaseClientEventSender.onCacheEvent(ClientListenerRegistry.scala:186) at sun.reflect.GeneratedMethodAccessor29.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:497) at org.infinispan.notifications.impl.AbstractListenerImpl$ListenerInvocationImpl$1.run(AbstractListenerImpl.java:286) ... 55 more {code}