As we know, in conf/jboss-service.xml, Log4jService is configured with specified url resource:jboss-log4j.xml. This is not a URL with file protocol. My question is what is resource protocol. And how can jboss find the actual jboss-log4j.xml file under conf folder. I tried URL configURL = new URL("resource:jboss-log4j.xml"); but the following exception is thrown. Exception in thread "main" java.net.MalformedURLException: unknown protocol: resource at java.net.URL.(Unknown Source) at java.net.URL.(Unknown Source) at java.net.URL.(Unknown Source) could someone give me some tips? thanks. View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4249147#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...