I guess the "Thread Local Pattern" in this FAQ http://www.jboss.org/community/wiki/WhatDoesTheMessageDoYourOwnHousekeepingMean View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4236417#4236417 Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&p=4236417