"jeff.yuchang" wrote : Also, in this test, I ran the DU::getClasspath, I showed the idm.jar, but couldn't find the idm.cfg.xml file, I was putting it in the idm.jar/META-INF/. | Only metadata files should be in META-INF. Configuration should be in the root. Or you need to add META-INF infront if you wanna lok for that resource via CL. View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4232445#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...