Problem seems to be solved by upgrading to JBoss-4.0.5. At least, jboss doesn't crash anymore. View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4233157#4233157 Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&p=4233157