When using that provder url i get: anonymous wrote : javax.naming.CommunicationException [Root exception is java.rmi.ServerException: RemoteException occurred in server thread; nested exception is: | java.rmi.UnmarshalException: error unmarshalling arguments; nested exception is: | java.net.MalformedURLException: no protocol: and] Also, I added the code you linked that prints out all the bindings for "java:". However, I am getting a NoClassDefFound for the class: org.jboss.ejb.plugins.keygenerator.hilo.HiLoKeyGeneratorFactory I have yet to find the jar containing that class. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3968197#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...