do you use c3p0? you can configure an idle time, so the db server doesn't disconnect from the connection. but it can reconnect too. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3981765#3981765 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=3981765