I copied your code, ran it, and finally figured out what was wrong. The annotation @Stateless(name="SimpleEJB") names the EJB, but it does not provide the JNDI name for the EJB. The JNDI name, by default, is "SimpleEJB/remote" (or "SimpleEJB/local"). So you can do one of two things. Change your lookup code to read: SimpleEJB sessEJBTest = (SimpleEJB)context.lookup("SimpleEJB/remote"); Or add a JBoss-specific annotation to your bean class: @Stateless(name="SimpleEJB") | @org.jboss.annotation.ejb.RemoteBinding(jndiBinding="SimpleEJB") | public final class SimpleEJBBean implements SimpleEJB { | ... View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3957075#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...