Hi, Unfortunatelly it happens randomly and when I detect it I just do restart the JBM server. View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4230119#4230119 Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&p=4230119