"skonyahin" wrote : Hello, jaikiran! | | Hibernate's version: 3.2.4 | Hibernate entity manager's version: 3.3.1 | | Thanks, | Sergey | The Hibernate entity-manager version that ships with JBoss-5.0 GA is 3.4.0.GA and the Hibernate core version is 3.3.1.GA. I would recommend that you remove the hibernate related jar files from your application and deploy it. Let us know, if you are still having issues View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4199982#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...