I have found one mistake. I have used the constructor from GetUserName to use the class. I have changed this and now i use the lookup: | InitialContext ic = new InitialContext(); | GetUserNameLocal getUsername = (GetUserNameLocal) ic.lookup("GetUserName/local"); | userName = getUsername.getUserName(); | Now I get no exception. But the the username is not the user that is logged on the session. I get "anonymous". Why? View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4212533#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...