[jboss-jira] [JBoss JIRA] (WFLY-5777) NPE when forming jgroups cluster

NPE when forming jgroups cluster -------------------------------- Key: WFLY-5777 URL: https://issues.jboss.org/browse/WFLY-5777 Project: WildFly Issue Type: Bug Components: Clustering Affects Versions: 9.0.1.Final, 10.0.0.CR4 Reporter: Thiago Presa Assignee: Paul Ferraro Fix For: 10.0.0.CR5 I just got this NPE when deploying a new application on my Wildfly 10 CR4 domain cluster. JGRP000027: failed passing message up: java.lang.RuntimeException: java.lang.NullPointerException at org.jgroups.blocks.MessageDispatcher$ProtocolAdapter.up(MessageDispatcher.java:689) at org.jgroups.JChannel.up(JChannel.java:738) at org.jgroups.stack.ProtocolStack.up(ProtocolStack.java:1029) at org.jgroups.protocols.FORK.up(FORK.java:133) at org.jgroups.protocols.FRAG2.up(FRAG2.java:165) at org.jgroups.protocols.FlowControl.up(FlowControl.java:394) at org.jgroups.protocols.pbcast.GMS.installView(GMS.java:735) at org.jgroups.protocols.pbcast.ParticipantGmsImpl.handleViewChange(ParticipantGmsImpl.java:140) at org.jgroups.protocols.pbcast.GMS.up(GMS.java:925) at org.jgroups.stack.Protocol.up(Protocol.java:412) at org.jgroups.protocols.pbcast.STABLE.up(STABLE.java:294) at org.jgroups.protocols.UNICAST3.up(UNICAST3.java:474) at org.jgroups.protocols.pbcast.NAKACK2.deliverBatch(NAKACK2.java:982) at org.jgroups.protocols.pbcast.NAKACK2.removeAndPassUp(NAKACK2.java:912) at org.jgroups.protocols.pbcast.NAKACK2.handleMessage(NAKACK2.java:846) at org.jgroups.protocols.pbcast.NAKACK2.up(NAKACK2.java:618) at org.jgroups.protocols.VERIFY_SUSPECT.up(VERIFY_SUSPECT.java:155) at org.jgroups.protocols.FD.up(FD.java:260) at org.jgroups.protocols.FD_SOCK.up(FD_SOCK.java:310) at org.jgroups.protocols.MERGE3.up(MERGE3.java:285) at org.jgroups.protocols.Discovery.up(Discovery.java:295) at org.jgroups.protocols.TP.passMessageUp(TP.java:1577) at org.jgroups.protocols.TP$MyHandler.run(TP.java:1796) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:745) Caused by: java.lang.NullPointerException at org.wildfly.clustering.server.group.ChannelNodeFactory.createNode(ChannelNodeFactory.java:55) at org.wildfly.clustering.server.group.ChannelNodeFactory.createNode(ChannelNodeFactory.java:40) at org.wildfly.clustering.server.dispatcher.ChannelCommandDispatcherFactory.getNodes(ChannelCommandDispatcherFactory.java:207) at org.wildfly.clustering.server.dispatcher.ChannelCommandDispatcherFactory.getNodes(ChannelCommandDispatcherFactory.java:201) at org.wildfly.clustering.server.dispatcher.ChannelCommandDispatcherFactory.viewAccepted(ChannelCommandDispatcherFactory.java:216) at org.jgroups.blocks.MessageDispatcher.handleUpEvent(MessageDispatcher.java:605) at org.jgroups.blocks.MessageDispatcher$ProtocolAdapter.up(MessageDispatcher.java:686) ... 25 more I have already stumbled upon this issue in Wildfly 9: https://developer.jboss.org/thread/265607