Ok, as a simple test can you do the following: Write a simple SLSB that uses straight JDBC to do the following: 1) Get a connection from the XADataSource that is injected 2) Use the connection to add/delete values from some random table 3) close the connection Executing this simple test will either confirm or deny that fact. If you cannot do this let me know and I will try and whip something up. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4006437#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...