I set a break point at the setUId method of the entity bean, it seems the setter method hasn't been called. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3960319#3960319 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=3960319