Made a very simple EAR {in Eclipse}, using Maven, all seems to be in order for its contents and everything. Plucked into the JBoss 5.1 default server config's deploy folder and started the server: - the app seems to deploy the 1st time, during a start-up, just fine - the then the server keeps trying to deploy it over and over, but of course it's already deployed, so the attempt runs into this error: org.jboss.deployers.spi.DeploymentException: Error deploying jboss-poc-ejb.jar: Error creating ejb container FubarBean1: Container jboss.j2ee:ear=ejb-app.ear,jar=jboss-poc-ejb.jar,name=FubarBean1,service=EJB3,VMID=026595140065ca82:1b62e705:1247d602e95:-7fc2 + is already registered What am I doing wrong? New to JBoss, but have done Weblogic development for years and have done this on WL a number of times before, if that makes much difference. Thanks, Karoy View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4261773#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...