Request to fail? The stack trace shows that this is happening on a put. Specifically, a putFailFast(), which Hibernate calls when it reads data from a DB and attempts to cache it. Since this put is a non-critical one, it is performed with a 0ms timeout and any exceptions are caught and not propagated to the caller. So this is why I find it strange that it causes the request to fail. Does your Hibernate call throw an exception? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4117961#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...