looks like alow level db error that has nothing to do with jBPM. try searching with the real error on e.g. google View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4265665#4265665 Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&p=4265665