"jwenting" wrote : A remote EJB client using an EJB local interface? | Might be the problem. It would be a problem, but I think it would show up later. The exception occurs during the JNDI lookup. At worst he should get a NamingException. The problem is that he hasn't told the client where the naming provider is located. One possible solution would be to modify the something like: | InitialContext ic = new InitialContext(); | Context jndiRoot = (Context) ic.lookup("jnp://localhost:1099"); | CalculatorLocal calculator = (CalculatorLocal)jndiRoot.lookup("CalculatorBean/local"); | Assuming that JBoss is running on the same machine as the client, otherwise adjust the URL accordingly. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4141871#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...