Note, the reason your setting is not working is because of the name. The | | <connection-property name="auto-commit">false</connection-property> | | should be renamed to | | <connection-property name="autoCommit">false</connection-property> | | But again, if you read my previous post, there are better, cleaner alternatives that the approach above. One of the drawbacks of doing this is the *-ds.xml file is that *all* connections created will have this property set. If you want to use the connection outside the context of a global transaction setting this property should really be done programmatically by you in your code. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4016517#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...