<ejb-ref-name>ejb/CMPHome</ejb-ref-name> Based on this ejb-ref-name, your lookup string is incorrect Object ojb= ic.lookup("java:comp/env/CMPHome"); Change the lookup to Object ojb= ic.lookup("java:comp/env/ejb/CMPHome"); P.S: While posting the logs or code or xml content, remember to wrap it in a code block using the Code button in the message editor window and please hit the Preview button to make sure your post is correctly formatted View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4150932#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...