Hello. we want to migrate our existing tomcat bases web application to a JBoss architecture. In the first step of the migration process we want to use both systems together: new parts of the application should be integrated with JBoss, existing parts should be used from the old application. I think it should work like this: - We build a new web application with JBoss. - We copy the war-file of the existing application to the tomcat and register the context. - In the menu of the new application we integrate some links to the .jsp-files of the old application. - Users log in at the JBoss web app. - When a user click in the menu on one of the menuitems of the old application he does not have to login a second time - the tomcat session is the same for the JBoss web app and the new one. - No data-exchange exept of user-handling has to be done between the two applications. Perhaps the old application can use some webservices from the JBoss Does this scenario work? Are there any integration-problems in general? Thanks for answers, Tomka. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4131143#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...