EJB 3 tutorial encourages to write non-standard code, at least in the EJB 2.1 adapters bit. See http://labs.jboss.com/jbossejb3/docs/tutorial/ejb21_client_adaptors/ejb21... Session1Bean is annotated with the @Remote annotation to designate Session1Remote as its remote business interface. However, Session1Remote interface extends the EJBObject interface, which is wrong. Enterprise JavaBeans 3.0 has this to say in §4.4.6: "The following are the requirements for the session bean's business interface: - The interface must not not extend the javax.ejb.EJBObject or javax.ejb.EJBLocalObject interface" See also JBAS-5036. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4110091#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...