Ok. My goodness. I feel like a dope. Actually, I was actually accessing the servlet via: http://localhost/testservlet/TestServlet, under Tomcat however, when I migrated to JBoss I typed the servlet mapping in all lowercase when it should have been in Pascal Case. So, I go a 404 error and I thought it was the wrong URL or the context was incorrect. Sorry, for the trouble. I'm just beginning with ejb, servlets and jsp's and I migrating to JBoss since I didn't see anything that said Tomcat is a container for EJB's. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3966802#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...