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  1. JBoss Enterprise Application Platform 4 and 5
  2. JBPAPP-10951

HASessionStateService can sometimes start before ClusterPartition is started

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      In previous versions of JBoss EAP 5 it was found that in some cases the HASessionStateService could start before the ClusterPartition was. This lead to NullPointerExceptions in org.jboss.ha.hasessionstate.server.HASessionStateImpl.localTakeOwnership(HASessionStateImpl.java:436) since the session#owner is null at that time. This, in turn, leade to NoSuchObjectException when trying to reach a SFSB clustered bean.

      Attributes in the JASessionStateService dependency have been refined to ensure that the HAPartition is started before the service is. This resolves the issue.
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      In previous versions of JBoss EAP 5 it was found that in some cases the HASessionStateService could start before the ClusterPartition was. This lead to NullPointerExceptions in org.jboss.ha.hasessionstate.server.HASessionStateImpl.localTakeOwnership(HASessionStateImpl.java:436) since the session#owner is null at that time. This, in turn, leade to NoSuchObjectException when trying to reach a SFSB clustered bean. Attributes in the JASessionStateService dependency have been refined to ensure that the HAPartition is started before the service is. This resolves the issue.
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      In some cases HASessionStateService can start before ClusterPartition is started which leads to NPE in org.jboss.ha.hasessionstate.server.HASessionStateImpl.localTakeOwnership(HASessionStateImpl.java:436) since the session#owner is null that time, see the stacktrace below. This leads to NoSuchObjectException when trying to reach a SFSB clustered bean.

      The ClusterPartition has always to start before the HASessionStateService as the HASessionStateService takes a node name out of the partition and fails to work if it is null.

      2014-01-08 16:45:35,437 DEBUG [org.jboss.ejb.plugins.AbstractInstanceCache] (WorkerThread#2[10.34.29.179:38574]) Activation failure, id=10.34.29.179:1099:hq6re3y5-cr
      java.lang.NullPointerException
              at org.jboss.ha.hasessionstate.server.HASessionStateImpl.localTakeOwnership(HASessionStateImpl.java:436)
              at org.jboss.ha.hasessionstate.server.HASessionStateImpl.getStateWithOwnership(HASessionStateImpl.java:407)
              at org.jboss.ejb.plugins.StatefulHASessionPersistenceManager.activateSession(StatefulHASessionPersistenceManager.java:157)
              at org.jboss.ejb.plugins.StatefulSessionInstanceCache.activate(StatefulSessionInstanceCache.java:113)
              at org.jboss.ejb.plugins.StatefulHASessionInstanceCache.get(StatefulHASessionInstanceCache.java:114)
              at org.jboss.ejb.plugins.StatefulSessionInstanceInterceptor.invoke(StatefulSessionInstanceInterceptor.java:252)
              at org.jboss.ejb.plugins.AbstractTxInterceptor.invokeNext(AbstractTxInterceptor.java:121)
              at org.jboss.ejb.plugins.TxInterceptorCMT.runWithTransactions(TxInterceptorCMT.java:350)
              at org.jboss.ejb.plugins.TxInterceptorCMT.invoke(TxInterceptorCMT.java:181)
              at org.jboss.ejb.plugins.security.PreSecurityInterceptor.process(PreSecurityInterceptor.java:100)
              at org.jboss.ejb.plugins.security.PreSecurityInterceptor.invoke(PreSecurityInterceptor.java:84)
              at org.jboss.ejb.plugins.LogInterceptor.invoke(LogInterceptor.java:205)
              at org.jboss.ejb.plugins.CleanShutdownInterceptor.invoke(CleanShutdownInterceptor.java:282)
              at org.jboss.ejb.plugins.AbstractInterceptor.invoke(AbstractInterceptor.java:112)
              at org.jboss.ha.framework.test.ExplicitFailoverServerInterceptor.invoke(ExplicitFailoverServerInterceptor.java:90)
              at org.jboss.ejb.plugins.ProxyFactoryFinderInterceptor.invoke(ProxyFactoryFinderInterceptor.java:138)
              at org.jboss.ejb.SessionContainer.internalInvoke(SessionContainer.java:650)
              at org.jboss.ejb.Container.invoke(Container.java:1092)
              at sun.reflect.GeneratedMethodAccessor314.invoke(Unknown Source)
              at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
              at java.lang.reflect.Method.invoke(Method.java:606)
              at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:157)
              at org.jboss.mx.server.Invocation.dispatch(Invocation.java:96)
              at org.jboss.mx.server.Invocation.invoke(Invocation.java:88)
              at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)
              at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:668)
              at org.jboss.invocation.unified.server.UnifiedInvokerHA.invoke(UnifiedInvokerHA.java:149)
              at org.jboss.remoting.ServerInvoker.invoke(ServerInvoker.java:967)
              at org.jboss.remoting.transport.socket.ServerThread.completeInvocation(ServerThread.java:797)
              at org.jboss.remoting.transport.socket.ServerThread.processInvocation(ServerThread.java:750)
              at org.jboss.remoting.transport.socket.ServerThread.dorun(ServerThread.java:586)
              at org.jboss.remoting.transport.socket.ServerThread.run(ServerThread.java:234)
      

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              istudens@redhat.com Ivo Studensky
              istudens@redhat.com Ivo Studensky
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