"cornfield" wrote : Hi,camunda | I tried your method, my application running fine! Thank you! But it's a camunda method,right? I don't know if there a official solution. | | Hi,mithilwane & sashaxiv & sipcity | My app used jbossall-client.jar in client, so I delete "Log4jLoggerPlugin.class" in "jboss4.2.0GA/client/jbossall-client.jar". My app loggin fine! Do you use this jar? You can try it! | | Thanks all repliers!!! Yes, it works fine. But at the same time, it will NOT write log to log file any more. Is it the final resolution? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4057677#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...