"wwebber" wrote : but none where you specify a vendor specific DataSource Impl. | If you look at the xa-datasource you will find that we specify the vendor specific DataSource implementation , but that is different concept :) Now what you have been doing is simply trying to you the pool implementation by different vendor . You can create a MBean which would create your custom DataSource and make this available to the Application deployed in Jboss . View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4084567#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...