Hi jaikiran, thank you for you prompt reply and you help. i think too it used to overwrite the earlier bound instance with the second instance. You say that is a bug in Jboss 5.1 ? or JBoss 4.2 ? I will try to restructure my application to deploy ejb-shared only once. But it is not simple, because I have entities that's extend the entities in the ejb-shared, and not whether it will work if I remove the ejb-shared from the EAR. I will try... Best Regards View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4254740#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...