If you want Hibernate and JBC to properly participate in the same transaction, then yeah, you're going to need to use a JTA transaction manager and configure Tomcat and Hibernate to use it. JOTM is one possibility; have a look as well at the JBoss Transactions user forum as well in case they can give you any help on integrating it in standalone Tomcat. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4080989#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...