Let me see if I understand this correctly. You have a data source named "java:/app/datasource", and the code to open the data source thinks that it is named "java:comp/env/app-specific/datasource"? Maybe the person who wrote the *-ds.xml file should get together with the person who wrote the Java code and agree to use the same name. ;-) View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4143531#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...