I assume that you have read the documentation for the Oracle JDBC driver on how to turn autocommit off. What does it say? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4177488#4177488 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4177488