Tomcat logging capabilities

We need to have access to log file for online transactions (web apps) when using the webMethods Tomcat, where we could be able to find requester information such as user ID, terminal, IP address, date and time. Normally, for http server like Apache http server, there is an access.log that provides this type of information.
I already verified the session.log but because the user is not prompted to enter login/passw in webMethods is very hard to distinguish the session created for the anonymours user from the system related sessions (the ones already running on the server), so I need to find if the webMethods WmTomcat has any other log capabilities other than the standard server.log, error.log and session.log.
Do you know where I can find similar info in webMethods or within the WmTomcat package?