"xps2nini" wrote : It is ejb jar created by ant . Can you post the output of the following command: - From the command prompt, go to %JBOSS_HOME%/server//deploy - Run the following command: jar -tf myejbjarfile.jar Replace myejbjarfile with the name of your ejb jar file. This will show us the contents of your jar file. To be identified as a ejb jar, the jar file should contain a META-INF folder with ejb-jar.xml inside it. Does your jar have that? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4084881#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...