question for user forum.
the version of AbstractPersistentCollection used to serialize the object was different from the version of the class to deserialize.
meaning your hibernate3.jar has changed and is incompatible with the current hibernate3.jar that you're using.
I have not changed/replaced hibernate jar file.
Then why do i face this error?
Can you please tell me how to solve this problem?
I'd start by posting in the correct forum and then see if the hibernate.jar on the server side and client side are the same (that is what Tom indirectly said
I go t the same problem but found the reason. It was due to different hibernate related library versions of used on client and server side. Take care that jbossall-client.jar compliant with your jboss version precedes other hibernate library version on your classpath.