anonymous wrote : t really can't be synchronized. Object creation is extremely fast these days in modern JVMs Ok I have removed the synchronisation. anonymous wrote : (Actually the old JDK logging used to have similar issues to what you re-introduced here, but they fixed it) I'm not sure they have, take a look at java.util.logging.SimpleFormatter which is the default formatter. View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4239906#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...