RHQ plugin + JON, problems with invoking operations on cache / cache manager ---------------------------------------------------------------------------- Key: ISPN-2759 URL: https://issues.jboss.org/browse/ISPN-2759 Project: Infinispan Issue Type: Bug Components: JMX, reporting and management Affects Versions: 5.2.0.CR3 Environment: Fresh installation of JON 3.1.2.GA + community RHQ plugin for library mode + community distribution server built from upstream (already containing: https://github.com/infinispan/infinispan/pull/1595). This bug was experienced before this PR already. Reporter: Tomas Sykora Assignee: Tristan Tarrant Fix For: 5.2.0.Final In JON we can see changing statistics for caches without any problems. Monitoring looks to be ok. Problems occurred while issuing any operation. For example: *start cache issued on DefaultCacheManager (JON's popup exception window output):* java.lang.NullPointerException at org.rhq.plugins.jmx.MBeanResourceComponent.loadBean(MBeanResourceComponent.java:175) at org.rhq.plugins.jmx.MBeanResourceComponent.getEmsBean(MBeanResourceComponent.java:137) at org.rhq.plugins.jmx.MBeanResourceComponent.invokeOperation(MBeanResourceComponent.java:524) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.rhq.core.pc.inventory.ResourceContainer$ComponentInvocationThread.call(ResourceContainer.java:634) at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303) at java.util.concurrent.FutureTask.run(FutureTask.java:138) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) at java.lang.Thread.run(Thread.java:662) *stop cache issued on cache* java.lang.NullPointerException at org.infinispan.rhq.CacheComponent.invokeOperation(CacheComponent.java:190) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.rhq.core.pc.inventory.ResourceContainer$ComponentInvocationThread.call(ResourceContainer.java:634) at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303) at java.util.concurrent.FutureTask.run(FutureTask.java:138) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) *ISPN console with trace logging enabled says:* 2013-01-25 15:24:27,351 DEBUG [CacheImpl] (RMI TCP Connection(8)-127.0.0.1) Stopping cache ___defaultcache on null 2013-01-25 15:24:27,357 DEBUG [TransactionTable] (RMI TCP Connection(8)-127.0.0.1) Wait for on-going transactions to finish for 30 seconds. 2013-01-25 15:24:27,357 DEBUG [TransactionTable] (RMI TCP Connection(8)-127.0.0.1) All transactions terminated Other operations seem to be unavailable too.