Thanks for the information, Jonathan. I have moved XAResourceWrapper to the transaction SPI instead as it can be used by other modules than the JCA implementation. Also I have renamed the methods to make them more non-EIS. I have started a thread on jboss-development on the integration of the jar files from this module. Once we have agreement on the deployment I'll commit the code for the connector module. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4165314#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...