during a "remove" from a java HotRod client we got this error.
This error happens only when there are more than one hotrod server in the cluster.
We are using hotrod server in library mode (embedded)
15/06/09 08:05:34 ERROR interceptors.InvocationContextInterceptor: ISPN000136: Execution error org.infinispan.commons.CacheListenerException: ISPN000280: Caught exception [java.lang.UnsupportedOperationException] while invoking method [public void org.infinispan.n otifications.cachelistener.cluster.RemoteClusterListener.handleClusterEvents(org.infinispan.notifications.cachelistener.event.CacheEntryEvent) throws java.lang.Exception] on listener instance: org.infinispan.not ifications.cachelistener.cluster.RemoteClusterListener@28d94aee at org.infinispan.notifications.impl.AbstractListenerImpl$ListenerInvocationImpl$1.run(AbstractListenerImpl.java:291) at org.infinispan.util.concurrent.WithinThreadExecutor.execute(WithinThreadExecutor.java:22) at org.infinispan.notifications.impl.AbstractListenerImpl$ListenerInvocationImpl.invoke(AbstractListenerImpl.java:309) at org.infinispan.notifications.cachelistener.CacheNotifierImpl$BaseCacheEntryListenerInvocation.doRealInvocation(CacheNotifierImpl.java:1180) at org.infinispan.notifications.cachelistener.CacheNotifierImpl$BaseCacheEntryListenerInvocation.invokeNoChecks(CacheNotifierImpl.java:1175) at org.infinispan.notifications.cachelistener.CacheNotifierImpl$BaseCacheEntryListenerInvocation.invoke(CacheNotifierImpl.java:1152) at org.infinispan.notifications.cachelistener.CacheNotifierImpl.notifyCacheEntryRemoved(CacheNotifierImpl.java:333) at org.infinispan.commands.write.RemoveCommand.notify(RemoveCommand.java:97) at org.infinispan.interceptors.locking.ClusteringDependentLogic$AbstractClusteringDependentLogic.notifyCommitEntry(ClusteringDependentLogic.java:130) at org.infinispan.interceptors.locking.ClusteringDependentLogic$DistributionLogic.commitSingleEntry(ClusteringDependentLogic.java:493) at org.infinispan.interceptors.locking.ClusteringDependentLogic$AbstractClusteringDependentLogic.commitEntry(ClusteringDependentLogic.java:108) at org.infinispan.interceptors.EntryWrappingInterceptor.commitContextEntry(EntryWrappingInterceptor.java:371) at org.infinispan.interceptors.EntryWrappingInterceptor.commitEntryIfNeeded(EntryWrappingInterceptor.java:549) at org.infinispan.interceptors.EntryWrappingInterceptor.commitContextEntries(EntryWrappingInterceptor.java:348) at org.infinispan.interceptors.EntryWrappingInterceptor.invokeNextAndApplyChanges(EntryWrappingInterceptor.java:422) at org.infinispan.interceptors.EntryWrappingInterceptor.setSkipRemoteGetsAndInvokeNextForDataCommand(EntryWrappingInterceptor.java:453) at org.infinispan.interceptors.EntryWrappingInterceptor.visitRemoveCommand(EntryWrappingInterceptor.java:252) at org.infinispan.commands.write.RemoveCommand.acceptVisitor(RemoveCommand.java:58) at org.infinispan.interceptors.base.CommandInterceptor.invokeNextInterceptor(CommandInterceptor.java:97) at org.infinispan.interceptors.distribution.L1LastChanceInterceptor.visitDataWriteCommand(L1LastChanceInterceptor.java:79) at org.infinispan.interceptors.distribution.L1LastChanceInterceptor.visitRemoveCommand(L1LastChanceInterceptor.java:75) at org.infinispan.commands.write.RemoveCommand.acceptVisitor(RemoveCommand.java:58) at org.infinispan.interceptors.base.CommandInterceptor.invokeNextInterceptor(CommandInterceptor.java:97) at org.infinispan.interceptors.locking.AbstractLockingInterceptor.visitNonTxDataWriteCommand(AbstractLockingInterceptor.java:88) at org.infinispan.interceptors.locking.NonTransactionalLockingInterceptor.visitDataWriteCommand(NonTransactionalLockingInterceptor.java:40) at org.infinispan.interceptors.locking.AbstractLockingInterceptor.visitRemoveCommand(AbstractLockingInterceptor.java:65) at org.infinispan.commands.write.RemoveCommand.acceptVisitor(RemoveCommand.java:58) at org.infinispan.interceptors.base.CommandInterceptor.invokeNextInterceptor(CommandInterceptor.java:97) at org.infinispan.interceptors.base.CommandInterceptor.handleDefault(CommandInterceptor.java:111) at org.infinispan.commands.AbstractVisitor.visitRemoveCommand(AbstractVisitor.java:49) at org.infinispan.commands.write.RemoveCommand.acceptVisitor(RemoveCommand.java:58) at org.infinispan.interceptors.base.CommandInterceptor.invokeNextInterceptor(CommandInterceptor.java:97) at org.infinispan.statetransfer.StateTransferInterceptor.handleNonTxWriteCommand(StateTransferInterceptor.java:324) at org.infinispan.statetransfer.StateTransferInterceptor.handleWriteCommand(StateTransferInterceptor.java:256) at org.infinispan.statetransfer.StateTransferInterceptor.visitRemoveCommand(StateTransferInterceptor.java:130) at org.infinispan.commands.write.RemoveCommand.acceptVisitor(RemoveCommand.java:58) at org.infinispan.interceptors.base.CommandInterceptor.invokeNextInterceptor(CommandInterceptor.java:97) at org.infinispan.interceptors.CacheMgmtInterceptor.visitRemoveCommand(CacheMgmtInterceptor.java:209) at org.infinispan.commands.write.RemoveCommand.acceptVisitor(RemoveCommand.java:58) at org.infinispan.interceptors.base.CommandInterceptor.invokeNextInterceptor(CommandInterceptor.java:97) at org.infinispan.interceptors.compat.BaseTypeConverterInterceptor.visitRemoveCommand(BaseTypeConverterInterceptor.java:228 at org.infinispan.commands.write.RemoveCommand.acceptVisitor(RemoveCommand.java:58) at org.infinispan.interceptors.base.CommandInterceptor.invokeNextInterceptor(CommandInterceptor.java:97) 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:49) at org.infinispan.commands.write.RemoveCommand.acceptVisitor(RemoveCommand.java:58) at org.infinispan.interceptors.InterceptorChain.invoke(InterceptorChain.java:336) at org.infinispan.cache.impl.CacheImpl.executeCommandAndCommitIfNeeded(CacheImpl.java:1617) at org.infinispan.cache.impl.CacheImpl.removeInternal(CacheImpl.java:579) at org.infinispan.cache.impl.CacheImpl.remove(CacheImpl.java:572) at org.infinispan.cache.impl.DecoratedCache.remove(DecoratedCache.java:442) at org.infinispan.server.hotrod.CacheDecodeContext.remove(CacheDecodeContext.scala:235) at org.infinispan.server.hotrod.HotRodDecoder.handleModification(HotRodDecoder.scala:216) at org.infinispan.server.hotrod.HotRodDecoder.org$infinispan$server$hotrod$HotRodDecoder$$decodeKey(HotRodDecoder.scala:102) at org.infinispan.server.hotrod.HotRodDecoder$$anonfun$decode$1.apply$mcV$sp(HotRodDecoder.scala:48) at org.infinispan.server.hotrod.HotRodDecoder$$anon$1.run(HotRodDecoder.scala:206) at org.infinispan.server.hotrod.HotRodDecoder$$anon$1.run(HotRodDecoder.scala:205) at org.infinispan.security.Security.doAs(Security.java:143) at org.infinispan.server.hotrod.HotRodDecoder.wrapSecurity(HotRodDecoder.scala:205) at org.infinispan.server.hotrod.HotRodDecoder.decode(HotRodDecoder.scala:45) at io.netty.handler.codec.ReplayingDecoder.callDecode(ReplayingDecoder.java:370) at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:168) at org.infinispan.server.hotrod.HotRodDecoder.org$infinispan$server$core$transport$StatsChannelHandler$$super$channelRead(HotRodDecoder.scala:31) at org.infinispan.server.core.transport.StatsChannelHandler$class.channelRead(StatsChannelHandler.scala:32) at org.infinispan.server.hotrod.HotRodDecoder.channelRead(HotRodDecoder.scala:31) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:308) at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:294) at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:846) at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:130) at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:511) at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:468) at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:382) at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:354) at io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:116) at io.netty.util.concurrent.DefaultThreadFactory$DefaultRunnableDecorator.run(DefaultThreadFactory.java:137) at java.lang.Thread.run(Thread.java:745) Caused by: java.lang.UnsupportedOperationException at java.util.AbstractCollection.add(AbstractCollection.java:262) at java.util.AbstractCollection.addAll(AbstractCollection.java:344) at org.infinispan.notifications.cachelistener.cluster.impl.BatchingClusterEventManagerImpl$UnicastEventContext.addTargets(BatchingClusterEventManagerImpl.java:82) at org.infinispan.notifications.cachelistener.cluster.impl.BatchingClusterEventManagerImpl.addEvents(BatchingClusterEventManagerImpl.java:43) at org.infinispan.notifications.cachelistener.cluster.RemoteClusterListener.handleClusterEvents(RemoteClusterListener.java:108) at sun.reflect.GeneratedMethodAccessor24.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:497) at org.infinispan.notifications.impl.AbstractListenerImpl$ListenerInvocationImpl$1.run(AbstractListenerImpl.java:286) ... 76 more