[JBoss-user] could not passivate

[G.L. Grobe]

Hey All, I'm getting the following 'Could not passivate' exceptions. I believe this is happening in either an entity or message bean. I've added 'transient' to my Connection objects which has worked on knocking out most all these exceptions, but I've got one exception left and ... what other type of class might it not be able to serialize that I need to mark as transient, or could there be another reason?

Any help much appreciated.

---
03:43:42,203 ERROR [Log4jService$ThrowableListenerLoggingAdapter] unhandled throwable
javax.ejb.EJBException: Could not passivate; CausedByException is:
org.jboss.mq.il.oil.OILClientILService
at org.jboss.ejb.plugins.StatefulSessionFilePersistenceManager.passivateSession(StatefulSessionFilePersistenceManager.java:294)
at org.jboss.ejb.plugins.StatefulSessionInstanceCache.passivate(StatefulSessionInstanceCache.java:78)
at org.jboss.ejb.plugins.AbstractInstanceCache$1.execute(AbstractInstanceCache.java:616)
at org.jboss.util.WorkerQueue$QueueLoop.run(WorkerQueue.java:206)
at java.lang.Thread.run(Thread.java:479)
java.io.NotSerializableException: org.jboss.mq.il.oil.OILClientILService
at java.io.ObjectOutputStream.outputObject(ObjectOutputStream.java:1143)
at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:361)
at java.io.ObjectOutputStream.outputClassFields(ObjectOutputStream.java:1822)
at java.io.ObjectOutputStream.defaultWriteObject(ObjectOutputStream.java:475)
at java.io.ObjectOutputStream.outputObject(ObjectOutputStream.java:1209)
at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:361)
at java.io.ObjectOutputStream.outputClassFields(ObjectOutputStream.java:1822)
at java.io.ObjectOutputStream.defaultWriteObject(ObjectOutputStream.java:475)
at java.io.ObjectOutputStream.outputObject(ObjectOutputStream.java:1209)
at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:361)
at org.jboss.ejb.plugins.StatefulSessionFilePersistenceManager.passivateSession(StatefulSessionFilePersistenceManager.java:288)
at org.jboss.ejb.plugins.StatefulSessionInstanceCache.passivate(StatefulSessionInstanceCache.java:78)
at org.jboss.ejb.plugins.AbstractInstanceCache$1.execute(AbstractInstanceCache.java:616)
at org.jboss.util.WorkerQueue$QueueLoop.run(WorkerQueue.java:206)
at java.lang.Thread.run(Thread.java:479)