HotRod Rolling Upgrades NPE when disabling cache store on target node --------------------------------------------------------------------- Key: ISPN-3552 URL: https://issues.jboss.org/browse/ISPN-3552 Project: Infinispan Issue Type: Bug Affects Versions: 6.0.0.Beta1 Reporter: Tomas Sykora Assignee: Mircea Markus After Tristan's fix for https://issues.jboss.org/browse/ISPN-3183 we can move successfully through recordKnownGlobalKeyset and synchronizeData operations. However, when we want to issue disconnectSource operation on target node, it is failing with given error: javax.management.MBeanException at org.infinispan.jmx.ResourceDMBean.invoke(ResourceDMBean.java:273) at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819) at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:791) at org.jboss.as.jmx.PluggableMBeanServerImpl$TcclMBeanServer.invoke(PluggableMBeanServerImpl.java:527) at org.jboss.as.jmx.PluggableMBeanServerImpl.invoke(PluggableMBeanServerImpl.java:263) at org.jboss.remotingjmx.protocol.v1.ServerProxy$InvokeHandler.handle(ServerProxy.java:1058) at org.jboss.remotingjmx.protocol.v1.ServerProxy$MessageReciever$1.run(ServerProxy.java:225) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603) at java.lang.Thread.run(Thread.java:722) Caused by: java.lang.reflect.InvocationTargetException 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:601) at org.infinispan.jmx.ResourceDMBean.invoke(ResourceDMBean.java:271) ... 9 more Caused by: java.lang.NullPointerException at org.infinispan.persistence.manager.PersistenceManagerImpl.disableStore(PersistenceManagerImpl.java:253) at org.infinispan.persistence.remote.upgrade.HotRodTargetMigrator.disconnectSource(HotRodTargetMigrator.java:101) at org.infinispan.upgrade.RollingUpgradeManager.disconnectSource(RollingUpgradeManager.java:71) ... 14 more Short input from Tristan: "problem is that after removing the store, it determines there are no more stores left so it tries to remove the loader/writer interceptors which for some reason are missing"