Try adding an "equals" method to either Uzman or Kullanici that tests against the "id" field. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4042322#4042322 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4042322