[jboss-jira] [JBoss JIRA] Updated: (JBAS-3198) Problems with separated ClassLoaders for EARs and pooled invoker (PooledInvokerHA).

[Dimitris Andreadis (JIRA)]

     [ http://jira.jboss.com/jira/browse/JBAS-3198?page=all ]

Dimitris Andreadis updated JBAS-3198:
-------------------------------------

    Fix Version/s:     (was: JBossAS-4.0.5.CR1)

> Problems with separated ClassLoaders for EARs and pooled invoker (PooledInvokerHA).
> -----------------------------------------------------------------------------------
>
>                 Key: JBAS-3198
>                 URL: http://jira.jboss.com/jira/browse/JBAS-3198
>             Project: JBoss Application Server
>          Issue Type: Bug
>      Security Level: Public(Everyone can see) 
>          Components: ClassLoading
>    Affects Versions: JBossAS-4.0.3 SP1
>         Environment: Windows XP, HP-UX 11, JDK 1.4.2 and 1.5
>            Reporter: Eric Hambuch
>         Assigned To: Scott M Stark
>
> When using the pooled invoker (PooledInvokerHA) in the "all" configuration with separated classloaders for each EAR (as described in Wiki:ClassLoadingConfiguration) an invocation to a bean causes confusion to the separated classloaders.
> More detailed:
> I switched from jrmpha-invoker (which creates a new thread for each request which is really bad) to pooledha invoker in a clustered environment. I have to Stateless Session Beans that share the same bean interface. Each Session Bean is deployed in a separate EAR. In "ear-deployer.xml" I switched "isolated" to "true" to separate the classloaders of the EARs.
> When I call the first bean everything works fine. But when I try to call the second bean (same interface, but different bean!) JBoss throws the following exception:
> java.rmi.ServerException: RuntimeException; nested exception is: 
> 	java.lang.IllegalArgumentException: argument type mismatch
> 	at org.jboss.ejb.plugins.LogInterceptor.handleException(LogInterceptor.java:386)
> 	at org.jboss.ejb.plugins.LogInterceptor.invoke(LogInterceptor.java:196)
> 	at org.jboss.ejb.plugins.CleanShutdownInterceptor.invoke(CleanShutdownInterceptor.java:264)
> 	at org.jboss.ejb.plugins.ProxyFactoryFinderInterceptor.invoke(ProxyFactoryFinderInterceptor.java:122)
> 	at org.jboss.ejb.SessionContainer.internalInvoke(SessionContainer.java:624)
> 	at org.jboss.ejb.Container.invoke(Container.java:873)
> 	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:324)
> 	at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:141)
> 	at org.jboss.mx.server.Invocation.dispatch(Invocation.java:80)
> 	at org.jboss.mx.server.Invocation.invoke(Invocation.java:72)
> 	at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:245)
> 	at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:644)
> 	at org.jboss.invocation.pooled.server.PooledInvokerHA.invoke(PooledInvokerHA.java:146)
> 	at org.jboss.invocation.pooled.server.ServerThread.processInvocation(ServerThread.java:213)
> 	at org.jboss.invocation.pooled.server.ServerThread.dorun(ServerThread.java:268)
> 	at org.jboss.invocation.pooled.server.ServerThread.run(ServerThread.java:139)
> Caused by: java.lang.IllegalArgumentException: argument type mismatch
> 	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:324)
> 	at org.jboss.invocation.Invocation.performCall(Invocation.java:345)
> 	at org.jboss.ejb.StatelessSessionContainer$ContainerInterceptor.invoke(StatelessSessionContainer.java:214)
> 	at org.jboss.resource.connectionmanager.CachedConnectionInterceptor.invoke(CachedConnectionInterceptor.java:149)
> 	at org.jboss.ejb.plugins.CallValidationInterceptor.invoke(CallValidationInterceptor.java:48)
> 	at org.jboss.ejb.plugins.AbstractTxInterceptor.invokeNext(AbstractTxInterceptor.java:106)
> 	at org.jboss.ejb.plugins.AbstractTxInterceptorBMT.invokeNext(AbstractTxInterceptorBMT.java:158)
> 	at org.jboss.ejb.plugins.TxInterceptorBMT.invoke(TxInterceptorBMT.java:62)
> 	at org.jboss.ejb.plugins.StatelessSessionInstanceInterceptor.invoke(StatelessSessionInstanceInterceptor.java:154)
> 	at org.jboss.ejb.plugins.SecurityInterceptor.invoke(SecurityInterceptor.java:153)
> 	at org.jboss.ejb.plugins.LogInterceptor.invoke(LogInterceptor.java:192)
> The IllegalArgumentException comes from the fact that the Method.invoke() is called with a class of the wrong classloader (class from other EAR).
> With jrmpha-invoker everything works fine. Maybe the thread pool causes a mixture of the classloaders?
> I created a minimized example that can be provided if required.

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