[infinispan-issues] [JBoss JIRA] (ISPN-2759) RHQ plugin + JON, problems with invoking operations on cache / cache manager

[Tomas Sykora (JIRA)]

Tomas Sykora created ISPN-2759:
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             Summary: 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
         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: Mircea Markus


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. 

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