so what can i do? i started jboss from within eclipse. same error. can i change the name from java:/DefaultDS to DefaultDS? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4149720#4149720 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4149720