2 Replies Latest reply on Feb 2, 2011 12:35 PM by cornhoolio22

ClassCastException under heavy load

cornhoolio22 Jan 31, 2011 7:51 AM

Hi,

I'm looking at the same problems as described here:

http://community.jboss.org/thread/111357

Under heavy load ClassCastExceptions are thrown.

The situation:

2 ears on one server (4.2.3, jbm 1.4.5, jboss-remoting 2.2.3.SP1) calling the same ejb on another appserver (same configuration) with the same value object.

When producing heavy load on ear 1 (10 threads parallel as clients) and then calling one time ear 2, a ClassCastException is thrown. Will list it below the text.

I found a fix for the problem in https://issues.jboss.org/browse/JBREM-900. This fix seems not to be in the 2.2.3SP1 nor in the 2.2.3.SP3 release.

I also read in the JIRA (http://community.jboss.org/message/583757) that there will be a 2.2.3SP4 release (hope soon ;-) ) and found a preversion from Ron (https://issues.jboss.org/browse/JBREM-1144). But the fix is also not in there (the test fails again).

When I use the 2.4.0.SP1 remoting version, the test succeeds. But the Messaging System is not able to work with this version, because of changes in the Client class (the connect method params were changed).

Is it possible, to release the Bugfix described in https://issues.jboss.org/browse/JBREM-900 with the 2.2.3.SP4 release?

Thx and Regards,

Markus

javax.ejb.EJBException: java.lang.ClassCastException:

org.cornhoolio22.ejbclassloadertestservice.ejbclassloadertestservice_calledclient.dto.CalledDto cannot be cast to org.cornhoolio22.ejbclassloadertestservice.ejbclassloadertestservice_calledclient.dto.CalledDto

at org.jboss.ejb3.tx.Ejb3TxPolicy.handleExceptionInOurTx(Ejb3TxPolicy.java:63)

at org.jboss.aspects.tx.TxPolicy.invokeInOurTx(TxPolicy.java:83)

at org.jboss.aspects.tx.TxInterceptor$Required.invoke(TxInterceptor.java:191)

at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)

at org.jboss.aspects.tx.TxPropagationInterceptor.invoke(TxPropagationInterceptor.java:95)

at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)

at org.jboss.ejb3.stateless.StatelessInstanceInterceptor.invoke(StatelessInstanceInterceptor.java:62)

at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)

at org.jboss.aspects.security.AuthenticationInterceptor.invoke(AuthenticationInterceptor.java:77)

at org.jboss.ejb3.security.Ejb3AuthenticationInterceptor.invoke(Ejb3AuthenticationInterceptor.java:110)

at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)

at org.jboss.ejb3.ENCPropagationInterceptor.invoke(ENCPropagationInterceptor.java:46)

at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)

at com.oneandone.coredev.swistec.cxfinterceptor.CxfInterceptorSpringBusCleanup.invoke(CxfInterceptorSpringBusCleanup.java:109)

at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)

at org.jboss.ejb3.asynchronous.AsynchronousInterceptor.invoke(AsynchronousInterceptor.java:106)

at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)

at org.jboss.ejb3.stateless.StatelessContainer.dynamicInvoke(StatelessContainer.java:304)

at org.jboss.aop.Dispatcher.invoke(Dispatcher.java:106)

at org.jboss.aspects.remoting.AOPRemotingInvocationHandler.invoke(AOPRemotingInvocationHandler.java:82)

at org.jboss.remoting.ServerInvoker.invoke(ServerInvoker.java:900)

at org.jboss.remoting.transport.socket.ServerThread.processInvocation(ServerThread.java:634)

at org.jboss.remoting.transport.socket.ServerThread.dorun(ServerThread.java:409)

at org.jboss.remoting.transport.socket.ServerThread.run(ServerThread.java:176)

Caused by: java.lang.ClassCastException: org.cornhoolio22.ejbclassloadertestservice.ejbclassloadertestservice_calledclient.dto.CalledDto cannot be cast to org.cornhoolio22.ejbclassloadertestservice.ejbclassloadertestservice_calledclient.dto.CalledDto

at $Proxy336.callService(Unknown Source)

at org.cornhoolio22.ejbclassloadertestservice.ejbclassloadertestservice_callejb2.impl.ServiceBean.callService(ServiceBean.java:38)

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.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:112)

at org.jboss.ejb3.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:166)

at org.jboss.ejb3.interceptor.EJB3InterceptorsInterceptor.invoke(EJB3InterceptorsInterceptor.java:63)

at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)

at org.jboss.ejb3.entity.TransactionScopedEntityManagerInterceptor.invoke(TransactionScopedEntityManagerInterceptor.java:54)

at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)

at org.jboss.ejb3.AllowedOperationsInterceptor.invoke(AllowedOperationsInterceptor.java:47)

at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)

at org.jboss.aspects.tx.TxPolicy.invokeInOurTx(TxPolicy.java:79)