Could not passivate; failed to save state

[jonasl]

I get this error in my stateful session bean. Is there any ideas on how to solve this problem?


15:02:24,781 WARN [AbstractInstanceCache] failed to passivate, id=e92p5p91-j
javax.ejb.EJBException: Could not passivate; failed to save state; CausedByExcep
tion is:
org.jboss.mq.SpyQueueSender
at org.jboss.ejb.plugins.StatefulSessionFilePersistenceManager.passivate
Session(StatefulSessionFilePersistenceManager.java:404)
at org.jboss.ejb.plugins.StatefulSessionInstanceCache.passivate(Stateful
SessionInstanceCache.java:93)
at org.jboss.ejb.plugins.AbstractInstanceCache.tryToPassivate(AbstractIn
stanceCache.java:180)
at org.jboss.ejb.plugins.LRUEnterpriseContextCachePolicy$OveragerTask.ru
n(LRUEnterpriseContextCachePolicy.java:419)
at java.util.TimerThread.mainLoop(Timer.java:512)
at java.util.TimerThread.run(Timer.java:462)
java.io.NotSerializableException: org.jboss.mq.SpyQueueSender
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1075)

at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java
:1369)
at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:13
41)
at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.jav
a:1284)
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1073)

at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:291)
at org.jboss.ejb.plugins.StatefulSessionFilePersistenceManager.passivate
Session(StatefulSessionFilePersistenceManager.java:395)
at org.jboss.ejb.plugins.StatefulSessionInstanceCache.passivate(Stateful
SessionInstanceCache.java:93)
at org.jboss.ejb.plugins.AbstractInstanceCache.tryToPassivate(AbstractIn
stanceCache.java:180)
at org.jboss.ejb.plugins.LRUEnterpriseContextCachePolicy$OveragerTask.ru
n(LRUEnterpriseContextCachePolicy.java:419)
at java.util.TimerThread.mainLoop(Timer.java:512)
at java.util.TimerThread.run(Timer.java:462)

[darranl]

Your session bean contains a reference to something that can not be serialized by the container.

java.io.NotSerializableException: org.jboss.mq.SpyQueueSender

Within the ejbPassivate method you need to clear the references to anything that can not be serialized by the container.

Have you got a QueueSender or something that you have not closed and set to null?

If you have a look at the EJB 2.1 specification section 7.4.1 there is a list of what can be handled by the container.

[jonasl]

Thank you for the reply.
Yes I have a QueueSender initialized in ejbCreate.

[jonasl]

I tried to set the QueueSender to null in ejbPassivate, and reactivate it in ejbActivate.

It changes the error to:

13:33:29,358 WARN [AbstractInstanceCache] failed to passivate, id=e941glx4-d
javax.ejb.EJBException: Could not passivate; failed to save state; CausedByExcep
tion is:
org.jboss.resource.adapter.jdbc.WrappedConnection
at org.jboss.ejb.plugins.StatefulSessionFilePersistenceManager.passivate
Session(StatefulSessionFilePersistenceManager.java:404)
at org.jboss.ejb.plugins.StatefulSessionInstanceCache.passivate(Stateful
SessionInstanceCache.java:93)
at org.jboss.ejb.plugins.AbstractInstanceCache.tryToPassivate(AbstractIn
stanceCache.java:180)
at org.jboss.ejb.plugins.LRUEnterpriseContextCachePolicy$OveragerTask.ru
n(LRUEnterpriseContextCachePolicy.java:419)
at java.util.TimerThread.mainLoop(Timer.java:512)
at java.util.TimerThread.run(Timer.java:462)
java.io.NotSerializableException: org.jboss.resource.adapter.jdbc.WrappedConnect
ion
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1075)

at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java
:1369)
at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:13
41)
at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.jav
a:1284)
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1073)

at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java
:1369)
at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:13
41)
at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.jav
a:1284)
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1073)

at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:291)
at org.jboss.ejb.plugins.StatefulSessionFilePersistenceManager.passivate
Session(StatefulSessionFilePersistenceManager.java:395)
at org.jboss.ejb.plugins.StatefulSessionInstanceCache.passivate(Stateful
SessionInstanceCache.java:93)
at org.jboss.ejb.plugins.AbstractInstanceCache.tryToPassivate(AbstractIn
stanceCache.java:180)
at org.jboss.ejb.plugins.LRUEnterpriseContextCachePolicy$OveragerTask.ru
n(LRUEnterpriseContextCachePolicy.java:419)
at java.util.TimerThread.mainLoop(Timer.java:512)
at java.util.TimerThread.run(Timer.java:462)

java.io.NotSerializableException: org.jboss.resource.adapter.jdbc.WrappedConnect
ion

Any hints on that one.

[schrouf]

Think about it, as it is the same error as before !

java.io.NotSerializableException: org.jboss.resource.adapter.jdbc.WrappedConnect
ion

This simply means, that you have an attribute of type org.jboss.resource.adapter.jdbc.WrappedConnect
ion ( or mybe java.sql.Connection ) that is NOT serializable... like org.jboss.mq.SpyQueueSender

Regards
Ulf

[jonasl]

Yes, but I dont know what that wrappecconnector is. I don´t have any sql code in my bean.

[schrouf]

Post your ejb class attribute section

[jonasl]

I had a logger class, that used a jdbc connection. Looks like it is working correct now - setting it to null in passivate etc.

At least no errors for 17 minutes now ;)

[darranl]

Don't forget to re-initialise the values in your ejbActivate method otherwise your next set of errors will be NullPointer exceptions when your code attempts to use the variables you have just set to null.

[jonasl]

Yes, I did do that.
Thanks alot for the help both of you.