Finally, I noticed that the hibernate3.jar that was in my classpath was
slightly different than that in the
server/default/deploy/jboss-hibernate.deployer/ folder. So I replaced the
classpath with the latter and it works fine. Hope this works for you too.
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I have pretty much the same environment and the same problem. When I create a
transient instance of my pojo and send it to the client, there will be no
problem. However, if the object is persistent (e.g. loaded from the database),
then I get the same InvalidClassException. (However, since I'm us
