Thanks for your response. All i did was adding <category name="com.example"> | <priority value="DEBUG" /> | </category> to /server/{server-configuration}/conf/log4j.xml but JBoss seems to ignore this entry (code is executed but the logging statement is omitted because the logging level is set to INFO). Is there any additional configuration necessary in the application or did you only add stuff to /conf/log4j.xml? On the other hand i got it working by removing log4j* from /server/{server-configuration}/lib and adding it to the top of my ear but then JBoss cries cause of the missing jars therefore this seems not the way to do it :(. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3994373#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...