Looks like the app server was unable to a connect to the database. Please post the full stack trace and the *-ds.xml file for your data source. Remember to enclose your XML text in UBBCode "code" tags - you can do this by selecting the XML text and clicking the Code button above the editor window. Also, click the Preview button to ensure that the formatting is correct and the XML text shows up before posting. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4191330#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...