OK, let's take this one step at a time. From the logs that you posted, i see that you are first deploying MyEjb.jar: anonymous wrote : 20:55:52,312 INFO [EJB3Deployer] Deployed: file:/D:/jboss-4.2.1.GA/server/default/deploy/MyEjb.jar At a later point of time, you are deploying myWebEar.ear which (as per the logs) contains MyEjb.jar and WebModule.war anonymous wrote : 20:55:53,749 INFO [EARDeployer] Init J2EE application: file:/E:/web/WebApp/myWebEar/myWebEar.ear So ultimately, the MyEjb.jar is being deployed twice (i might be wrong, but at this point that's what i can infer from the logs). I would suggest that you delete the MyEjb.jar which is present at D:/jboss-4.2.1.GA/server/default/deploy and then restart JBoss. See if that solves the issue. Let us know how it goes. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4099830#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...