You can't reverse engineer tables that don't have primary keys. You should not have tables w/o primary keys anyway. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3989917#3989917 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=3989917