It's for EJB2 entity beans and is not needed if you are only using EJB3. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3984537#3984537 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=3984537