i think they nee to be private transient Foo foo - @transient is annotation for jpa iirc View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4043005#4043005 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4043005