Currently I have an j2ee application which runs on both jboss and tomcat, both installed separately. I need to start jboss and tomcat at the same time. I thought since jboss has tomcat built in, why can't I just run one instance of jboss? But it won't find the web pages if I just run jboss. I thought I might need to modify some descriptor files in tomcat server to be understood by jboss. Can anyone instruct me where and how to rewrite the descriptor files, or other way, so that I can run just one instance of jboss.