Since the -ds.xml file gets converted into set of MBeans and it seems that the deployment of those generated MBeans and scheculer-service.xml are clashing. why to make things complex? You can encapsulate the scheduler service in the sar and later add this sar with the -ds.xml inside the EAR and use the strict deployment. Another option I can think of defining the tag with dependeny on the jboss.jca MBean in the schedular-services.xml. To confirm the accurate working of things enable the trace logs for the deployers and verify the stuff ;) I am sure the options that I have mentioned will work. View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4211686#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...