Hi, one major advantage(to me, i acknowledge ;-) ) of the java.util.logging package over log4j and other logging libraries is its security. it uses the underlying java security infrastructure by securing logs with loggingpermission use. have you any plan to use loggingpermission? it can be used very easily to control any logging configuration change. other use case can stands on loggingpermission to prevent some programers to use loggers of some packages for example. if you are interested to implemented this feature, i can help you to understand java security internals if needed. cheers, Charles GAY www.jguard.net -- View this message in context: http://www.nabble.com/loggingPermission-tf2731649.html#a7619191 Sent from the Logback User mailing list archive at Nabble.com.