NPE during ClearCommand ----------------------- Key: ISPN-6304 URL: https://issues.jboss.org/browse/ISPN-6304 Project: Infinispan Issue Type: Bug Components: Core Affects Versions: 8.2.0.CR1, 8.2.0.Final, 8.1.2.Final Reporter: Gustavo Fernandes Assignee: Dan Berindei Fix For: 9.0.0.Alpha1 The logs can be seen on https://travis-ci.org/infinispan/infinispan-hadoop/builds/113090728 The NPE happens intermittently. {code} 0:52:28,139 ERROR [org.infinispan.interceptors.InvocationContextInterceptor] (HotRodServerWorker-7-1) ISPN000136: Error executing command ClearCommand, writing keys []: org.infinispan.remoting.RemoteException: ISPN000217: Received exception from node1, see cause for remote stack trace at org.infinispan.remoting.transport.AbstractTransport.checkResponse(AbstractTransport.java:44) at org.infinispan.remoting.transport.jgroups.JGroupsTransport.checkRsp(JGroupsTransport.java:796) at org.infinispan.remoting.transport.jgroups.JGroupsTransport.lambda$invokeRemotelyAsync$83(JGroupsTransport.java:633) at org.infinispan.remoting.transport.jgroups.JGroupsTransport$$Lambda$46/308539050.apply(Unknown Source) at java.util.concurrent.CompletableFuture$ThenApply.run(CompletableFuture.java:717) at java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:193) at java.util.concurrent.CompletableFuture.complete(CompletableFuture.java:2345) at org.infinispan.remoting.transport.jgroups.SingleResponseFuture.futureDone(SingleResponseFuture.java:30) at org.jgroups.blocks.Request.checkCompletion(Request.java:162) at org.jgroups.blocks.UnicastRequest.receiveResponse(UnicastRequest.java:81) at org.jgroups.blocks.RequestCorrelator.receiveMessage(RequestCorrelator.java:373) at org.jgroups.blocks.RequestCorrelator.receive(RequestCorrelator.java:237) at org.jgroups.blocks.MessageDispatcher$ProtocolAdapter.up(MessageDispatcher.java:695) at org.jgroups.JChannel.up(JChannel.java:738) at org.jgroups.fork.ForkProtocolStack.up(ForkProtocolStack.java:120) at org.jgroups.stack.Protocol.up(Protocol.java:379) at org.jgroups.protocols.FORK.up(FORK.java:114) at org.jgroups.protocols.FRAG2.up(FRAG2.java:165) at org.jgroups.protocols.FlowControl.up(FlowControl.java:392) at org.jgroups.protocols.FlowControl.up(FlowControl.java:381) at org.jgroups.protocols.pbcast.GMS.up(GMS.java:1043) at org.jgroups.protocols.pbcast.STABLE.up(STABLE.java:234) at org.jgroups.protocols.UNICAST3.deliverMessage(UNICAST3.java:1064) at org.jgroups.protocols.UNICAST3.handleDataReceived(UNICAST3.java:779) at org.jgroups.protocols.UNICAST3.up(UNICAST3.java:426) at org.jgroups.protocols.pbcast.NAKACK2.up(NAKACK2.java:652) at org.jgroups.protocols.VERIFY_SUSPECT.up(VERIFY_SUSPECT.java:155) at org.jgroups.protocols.FD_ALL.up(FD_ALL.java:200) at org.jgroups.protocols.FD_SOCK.up(FD_SOCK.java:310) at org.jgroups.protocols.MERGE3.up(MERGE3.java:285) at org.jgroups.protocols.Discovery.up(Discovery.java:296) at org.jgroups.protocols.TP.passMessageUp(TP.java:1590) at org.jgroups.protocols.TP$SingleMessageHandler.run(TP.java:1802) 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: org.infinispan.commons.CacheException: java.lang.NullPointerException at org.infinispan.remoting.inboundhandler.GlobalInboundInvocationHandler.handleFromCluster(GlobalInboundInvocationHandler.java:89) at org.infinispan.remoting.transport.jgroups.CommandAwareRpcDispatcher.executeCommandFromLocalCluster(CommandAwareRpcDispatcher.java:196) at org.infinispan.remoting.transport.jgroups.CommandAwareRpcDispatcher.handle(CommandAwareRpcDispatcher.java:166) at org.jgroups.blocks.RequestCorrelator.handleRequest(RequestCorrelator.java:402) at org.jgroups.blocks.RequestCorrelator.receiveMessage(RequestCorrelator.java:352) ... 25 more Caused by: java.lang.NullPointerException at org.infinispan.remoting.inboundhandler.GlobalInboundInvocationHandler.handleCacheRpcCommand(GlobalInboundInvocationHandler.java:126) at org.infinispan.remoting.inboundhandler.GlobalInboundInvocationHandler.handleFromCluster(GlobalInboundInvocationHandler.java:75) ... 29 more {code}