The default transaction attribute is "required", which will create a new transaction if there is not one. Could you post the full exception stack trace? Also, post the source code for the EJB that is showing this problem. Enclose the source code in UBBCode "code" tags - you can do this by selecting the source and clicking the Code button above the editor window. Also, click the Preview button to ensure that the formatting is correct before posting. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4185215#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...