Looking at the stack trace it looks as if you have got a reference to and instance of 'org.apache.log4j.Logger' in a session bean that is being passivated / serialized by the container.
View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=3839978#3839978 Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&p=3839978 ------------------------------------------------------- This SF.Net email sponsored by Black Hat Briefings & Training. Attend Black Hat Briefings & Training, Las Vegas July 24-29 - digital self defense, top technical experts, no vendor pitches, unmatched networking opportunities. Visit www.blackhat.com _______________________________________________ JBoss-user mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/jboss-user