As reported by bortx we have seen this issue with our RA. We havent tried this kind of functionality with any of the JBoss` shipped RAs. We have modified the sources for Jboss AS connector, from the sources in 4.2.3 tag, and now the problem is fixed for our RA. One might think that the problem is in our RA, but looking at the code, it seems that it might affect any RA. We haven't had time to validate with JDBC for example, but it is very clear that the problem is there. View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4260372#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...