I've written a WebApp containing some JSPs. First I deployed the WebApp as a WAR-file. Because of using Hibernate I need a jboss-service.xml file (defining a mbean) in folder META-INF. If I deploy the WebApp as a WAR-file, the container doesn't process the jboss-service.xml. So I renamed the WAR-file to a SAR-file. Now the jboss-service.xml is processed successfully, but I can't reach my JSP-files after deploying the SAR-file. Can somebody help me? What is the interrelation of EAR-, SAR- and WAR-files?