I think this is a bug. Can you open a JIRA issue and attach your orm.xml? Thanks. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4102379#4102379 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4102379