See this http://www.jboss.org/community/docs/DOC-9280. When packaging the WAR and the EJB inside an EAR, there should not be multiple packages containing the EJB interfaces, as in your case. Remove the EJBClient.jar from the WEB-INF/lib and let the WAR access them from the one available at the EAR. See if that fixes the problem. If not, please post the JNDI tree output, which i requested for in my earlier reply: "jaikiran" wrote : | Also, please post the output of JNDI tree - follow these steps http://www.jboss.org/community/docs/DOC-9584 View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4194781#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...