Hi,

We have an application that uses JMS/MDB to send messages, processes these messages and persists derived (from messages) Hibernate-objects. Running a heavy load synchornise works fine but now that we use JMS/MDB on JBoss 4.0.2 we get the following errors which occurs now and again:

java.lang.IllegalArgumentException: Illegal load factor: 0.75
at java.util.HashMap.(HashMap.java:168)
at java.util.HashMap.(HashMap.java:190)
at org.hibernate.engine.PersistenceContext.(PersistenceContext.java:171)
at org.hibernate.impl.SessionImpl.(SessionImpl.java:225)
at org.hibernate.impl.SessionFactoryImpl.openSession(SessionFactoryImpl.java:462)
at org.hibernate.impl.SessionFactoryImpl.openSession(SessionFactoryImpl.java:486)
at org.hibernate.impl.SessionFactoryImpl.openSession(SessionFactoryImpl.java:494)
at sun.reflect.GeneratedMethodAccessor237.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at org.springframework.orm.hibernate3.LocalSessionFactoryBean$TransactionAwareInvocationHandler.invoke(LocalSessionFactoryBean.java:988)
at $Proxy64.openSession(Unknown Source)
at org.springframework.orm.hibernate3.HibernateTransactionManager.doBegin(HibernateTransactionManager.java:395)
at org.springframework.transaction.support.AbstractPlatformTransactionManager.getTransaction(AbstractPlatformTransactionManager.java:281)
at org.springframework.transaction.interceptor.TransactionAspectSupport.createTransactionIfNecessary(TransactionAspectSupport.java:217)
at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:89)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:144)
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:174)
at $Proxy68.findBerichtByActiviteitId(Unknown Source)
at nl.ictu.spg.service.lo3.gbanetwork.LO3BerichtUtil.locateLO3Bericht(LO3BerichtUtil.java:421)
at nl.ictu.spg.service.lo3.gbanetwork.LO3BerichtActiviteit.(LO3BerichtActiviteit.java:129)
at nl.ictu.spg.domain.activityflow.ActivityflowFactory.initializeWorkFlowActiviteit(ActivityflowFactory.java:160)
at nl.ictu.spg.domain.activityflow.ActivityflowFactory.loadWorkFlowActiviteit(ActivityflowFactory.java:136)
at nl.ictu.spg.service.lo3.gbanetwork.LO3BerichtDispatcher.dispatch(LO3BerichtDispatcher.java:37)
at nl.ictu.spg.integration.idvmessageprocessing.ejb.SpGBerichtDispatcherMDB.dispatchIndividualId(SpGBerichtDispatcherMDB.java:98)
at nl.ictu.spg.integration.idvmessageprocessing.ejb.SpGBerichtDispatcherMDB.dispatchArrayOfIds(SpGBerichtDispatcherMDB.java:108)
at nl.ictu.spg.integration.idvmessageprocessing.ejb.SpGBerichtDispatcherMDB.onMessage(SpGBerichtDispatcherMDB.java:79)
at sun.reflect.GeneratedMethodAccessor447.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at org.jboss.invocation.Invocation.performCall(Invocation.java:345)
at org.jboss.ejb.MessageDrivenContainer$ContainerInterceptor.invoke(MessageDrivenContainer.java:475)
at org.jboss.resource.connectionmanager.CachedConnectionInterceptor.invoke(CachedConnectionInterceptor.java:185)
at org.jboss.ejb.plugins.CallValidationInterceptor.invoke(CallValidationInterceptor.java:48)
at org.jboss.ejb.plugins.AbstractTxInterceptor.invokeNext(AbstractTxInterceptor.java:105)
at org.jboss.ejb.plugins.AbstractTxInterceptorBMT.invokeNext(AbstractTxInterceptorBMT.java:153)
at org.jboss.ejb.plugins.MessageDrivenTxInterceptorBMT.invoke(MessageDrivenTxInterceptorBMT.java:32)
at org.jboss.ejb.plugins.MessageDrivenInstanceInterceptor.invoke(MessageDrivenInstanceInterceptor.java:87)
at org.jboss.ejb.plugins.RunAsSecurityInterceptor.invoke(RunAsSecurityInterceptor.java:94)
at org.jboss.ejb.plugins.LogInterceptor.invoke(LogInterceptor.java:192)
at org.jboss.ejb.plugins.ProxyFactoryFinderInterceptor.invoke(ProxyFactoryFinderInterceptor.java:122)
at org.jboss.ejb.MessageDrivenContainer.internalInvoke(MessageDrivenContainer.java:389)
at org.jboss.ejb.Container.invoke(Container.java:873)
at org.jboss.ejb.plugins.jms.JMSContainerInvoker.invoke(JMSContainerInvoker.java:1090)
at org.jboss.ejb.plugins.jms.JMSContainerInvoker$MessageListenerImpl.onMessage(JMSContainerInvoker.java:1392)
at org.jboss.jms.asf.StdServerSession.onMessage(StdServerSession.java:256)
at org.jboss.mq.SpyMessageConsumer.sessionConsumerProcessMessage(SpyMessageConsumer.java:904)
at org.jboss.mq.SpyMessageConsumer.addMessage(SpyMessageConsumer.java:160)
at org.jboss.mq.SpySession.run(SpySession.java:333)
at org.jboss.jms.asf.StdServerSession.run(StdServerSession.java:180)
at EDU.oswego.cs.dl.util.concurrent.PooledExecutor$Worker.run(PooledExecutor.java:748)
at java.lang.Thread.run(Thread.java:534)
.

What could be the problem? Memory shortage on JBoss, not using Hibernate or Spring correctly?

Hibernate 3.0.5
Spring 1.2.3
JBoss 4.0.2
JDK 1.4.2_08

Any ideas or suggestions?

Thanks,
Maarten