Where is the 'transaction.manager_lookup_class': | <property name="hibernate.transaction.manager_lookup_class" value="org.hibernate.transaction.JBossTransactionManagerLookup"/> | and the 'jta-data-source' looks wrong, try: | <jta-data-source>java:/WillsSeamProjectDatasource</jta-data-source> | And what about the components.xml? - I need to see it. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4128058#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...