Hi, first i do not know whether i'm in the right forum for the exception below. i got this exception while my application running. Is there any idea about what this exception about and the solution?

Exception as below:

11:13:15,203 WARN [AbstractInstanceCache] failed to passivate, id=dwk0i9nn-e
javax.ejb.EJBException: Could not passivate; failed to save state; CausedByException is:
server.im.chat.EventFactory
at org.jboss.ejb.plugins.StatefulSessionFilePersistenceManager.passivateSession(StatefulSessionFilePersistenceManager.java:378)
at org.jboss.ejb.plugins.StatefulSessionInstanceCache.passivate(StatefulSessionInstanceCache.java:85)
at org.jboss.ejb.plugins.AbstractInstanceCache.tryToPassivate(AbstractInstanceCache.java:151)
at org.jboss.ejb.plugins.LRUEnterpriseContextCachePolicy$OveragerTask.run(LRUEnterpriseContextCachePolicy.java:419)
at java.util.TimerThread.mainLoop(Timer.java:432)
at java.util.TimerThread.run(Timer.java:382)
java.io.NotSerializableException: server.im.chat.EventFactory
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1054)
at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1330)
at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1302)
at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1245)
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1052)
at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:278)
at org.jboss.ejb.plugins.StatefulSessionFilePersistenceManager.passivateSession(StatefulSessionFilePersistenceManager.java:370)
at org.jboss.ejb.plugins.StatefulSessionInstanceCache.passivate(StatefulSessionInstanceCache.java:85)
at org.jboss.ejb.plugins.AbstractInstanceCache.tryToPassivate(AbstractInstanceCache.java:151)
at org.jboss.ejb.plugins.LRUEnterpriseContextCachePolicy$OveragerTask.run(LRUEnterpriseContextCachePolicy.java:419)
at java.util.TimerThread.mainLoop(Timer.java:432)
at java.util.TimerThread.run(Timer.java:382)
11:14:24,359 WARN [AbstractInstanceCache] failed to passivate, id=dwk0ishm-g
javax.ejb.EJBException: Could not passivate; failed to save state; CausedByException is:
org.jboss.mq.il.oil.OILClientILService
at org.jboss.ejb.plugins.StatefulSessionFilePersistenceManager.passivateSession(StatefulSessionFilePersistenceManager.java:378)
at org.jboss.ejb.plugins.StatefulSessionInstanceCache.passivate(StatefulSessionInstanceCache.java:85)
at org.jboss.ejb.plugins.AbstractInstanceCache.tryToPassivate(AbstractInstanceCache.java:151)
at org.jboss.ejb.plugins.LRUEnterpriseContextCachePolicy$OveragerTask.run(LRUEnterpriseContextCachePolicy.java:419)
at java.util.TimerThread.mainLoop(Timer.java:432)
at java.util.TimerThread.run(Timer.java:382)
java.io.NotSerializableException: org.jboss.mq.il.oil.OILClientILService
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1054)
at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1330)
at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1302)
at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1245)
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1052)
at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1330)
at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1302)
at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1245)
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1052)
at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:278)
at org.jboss.ejb.plugins.StatefulSessionFilePersistenceManager.passivateSession(StatefulSessionFilePersistenceManager.java:370)
at org.jboss.ejb.plugins.StatefulSessionInstanceCache.passivate(StatefulSessionInstanceCache.java:85)
at org.jboss.ejb.plugins.AbstractInstanceCache.tryToPassivate(AbstractInstanceCache.java:151)
at org.jboss.ejb.plugins.LRUEnterpriseContextCachePolicy$OveragerTask.run(LRUEnterpriseContextCachePolicy.java:419)
at java.util.TimerThread.mainLoop(Timer.java:432)
at java.util.TimerThread.run(Timer.java:382)


Help needed! Thank you.

From
sjheng