Remove cache command for caches not created on all nodes fails with CacheException and an NPE root cause -------------------------------------------------------------------------------------------------------- Key: ISPN-4161 URL: https://issues.jboss.org/browse/ISPN-4161 Project: Infinispan Issue Type: Bug Reporter: Vladimir Blagojevic Fix For: 8.1.0.Final While testing creation of intermediate caches for M/R tasks I noticed that remove command fails with CacheException and NPE if the cache has not been created on all nodes. The culprit is in RemoteCommandsFactory where the following line of code: registry.getNamedComponentRegistry(cacheName).getComponent(PersistenceManager.class) assumes that component with cacheName has been registered. org.infinispan.commons.CacheException: Error removing cache at org.infinispan.manager.DefaultCacheManager.removeCache(DefaultCacheManager.java:477) at org.infinispan.distexec.mapreduce.MapReduceTask.execute(MapReduceTask.java:421) at org.infinispan.distexec.mapreduce.DistributedIntermediateCacheFourNodesMapReduceTest.testIntermediateCacheNotCreatedOnAllNodes(DistributedIntermediateCacheFourNodesMapReduceTest.java:66) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at org.testng.internal.MethodInvocationHelper.invokeMethod(MethodInvocationHelper.java:80) at org.testng.internal.Invoker.invokeMethod(Invoker.java:714) at org.testng.internal.Invoker.invokeTestMethod(Invoker.java:901) at org.testng.internal.Invoker.invokeTestMethods(Invoker.java:1231) at org.testng.internal.TestMethodWorker.invokeTestMethods(TestMethodWorker.java:127) at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:111) at org.testng.TestRunner.privateRun(TestRunner.java:767) at org.testng.TestRunner.run(TestRunner.java:617) at org.testng.SuiteRunner.runTest(SuiteRunner.java:334) at org.testng.SuiteRunner.access$000(SuiteRunner.java:37) at org.testng.SuiteRunner$SuiteWorker.run(SuiteRunner.java:368) at org.testng.internal.thread.ThreadUtil$2.call(ThreadUtil.java:64) at java.util.concurrent.FutureTask.run(FutureTask.java:262) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at java.lang.Thread.run(Thread.java:744) Caused by: org.infinispan.remoting.RemoteException: ISPN000217: Received exception from DistributedIntermediateCacheFourNodesMapReduceTest-NodeD-24545, see cause for remote stack trace at org.infinispan.remoting.transport.AbstractTransport.checkResponse(AbstractTransport.java:41) at org.infinispan.remoting.transport.AbstractTransport.parseResponseAndAddToResponseList(AbstractTransport.java:66) at org.infinispan.remoting.transport.jgroups.JGroupsTransport.invokeRemotely(JGroupsTransport.java:548) at org.infinispan.manager.DefaultCacheManager.removeCache(DefaultCacheManager.java:469) ... 22 more Caused by: org.infinispan.commons.CacheException: Problems invoking command. at org.infinispan.remoting.transport.jgroups.CommandAwareRpcDispatcher.handle(CommandAwareRpcDispatcher.java:219) at org.jgroups.blocks.RequestCorrelator.handleRequest(RequestCorrelator.java:457) at org.jgroups.blocks.RequestCorrelator.receiveMessage(RequestCorrelator.java:374) at org.jgroups.blocks.RequestCorrelator.receive(RequestCorrelator.java:247) at org.jgroups.blocks.MessageDispatcher$ProtocolAdapter.up(MessageDispatcher.java:668) at org.jgroups.JChannel.up(JChannel.java:711) at org.jgroups.stack.ProtocolStack.up(ProtocolStack.java:1030) at org.jgroups.protocols.RSVP.up(RSVP.java:187) at org.jgroups.protocols.FRAG2.up(FRAG2.java:165) at org.jgroups.protocols.FlowControl.up(FlowControl.java:370) at org.jgroups.protocols.FlowControl.up(FlowControl.java:381) at org.jgroups.protocols.tom.TOA.up(TOA.java:121) at org.jgroups.protocols.pbcast.GMS.up(GMS.java:1040) at org.jgroups.protocols.pbcast.STABLE.up(STABLE.java:234) at org.jgroups.protocols.UNICAST3.up(UNICAST3.java:404) at org.jgroups.protocols.pbcast.NAKACK2.handleMessage(NAKACK2.java:774) at org.jgroups.protocols.pbcast.NAKACK2.up(NAKACK2.java:570) at org.jgroups.protocols.FD_SOCK.up(FD_SOCK.java:296) at org.jgroups.protocols.Discovery.up(Discovery.java:379) at org.jgroups.protocols.TP.passMessageUp(TP.java:1502) at org.jgroups.protocols.TP$MyHandler.run(TP.java:1719) ... 3 more Caused by: java.lang.NullPointerException at org.infinispan.commands.RemoteCommandsFactory.fromStream(RemoteCommandsFactory.java:198) at org.infinispan.marshall.exts.ReplicableCommandExternalizer.fromStream(ReplicableCommandExternalizer.java:106) at org.infinispan.marshall.exts.CacheRpcCommandExternalizer.readObject(CacheRpcCommandExternalizer.java:151) at org.infinispan.marshall.exts.CacheRpcCommandExternalizer.readObject(CacheRpcCommandExternalizer.java:62) at org.infinispan.marshall.core.ExternalizerTable$ExternalizerAdapter.readObject(ExternalizerTable.java:404) at org.infinispan.marshall.core.ExternalizerTable.readObject(ExternalizerTable.java:212) at org.infinispan.marshall.core.JBossMarshaller$ExternalizerTableProxy.readObject(JBossMarshaller.java:152)