Ok Jaikiran, let me explain : We have one EAR file up and running on Jboss5. This ear file contatins EJB3,servlets and core java classes. The client java program sits inside the EAR file. So do you mean to say that I need to copy the jar files under REMOTE_JBOSS/server/default/lib to JBOSS5/client ? If so is it enough to copy the jboss-ejb3x.jar and jboss-ejb3-client.jar to the client dir ? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4203898#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...