Thanks for looking into it. If I have authenticate(String userName, String password) only in one endpoint/1 ejb3, it works. If I have authenticate(String userName, String password) and authenticate(String userName) in one endpoint/1 ejb3, it did not work. I thought authenticate(String userName, String password) in 1 endpoint/1 ejb3 and authenticate(String userName) in different endpoint/ejb3 should work. But it did not work. Both ejb3s were packaged into the same ear file. Since both ejb3's have different name spaces, I thought it should work, but it did not !! Am I missing something? Your help will be appreciated. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4077501#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...