The problem you are facing is not the same as the original poster. You should have opened a new post for this. anonymous wrote : I am facing a similar problem after I deploy my datasource.xml file in the deploy directory Thats not the right way to deploy a datasource. The datasource file name should be *-ds.xml (Ex: myDatasource-ds.xml). Have a look at http://wiki.jboss.org/wiki/Wiki.jsp?page=DSdotXML http://wiki.jboss.org/wiki/Wiki.jsp?page=ConfigDataSources View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4059400#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...