[logback-user] Replacing JUL with logback with Tomcat

I have setup logback-access according to the documentation with a LogbackValve and my Tomcat instance is logging requests. However it seems Tomcat is still writing messages to the console using JUL. What is the best way to route these messages to logback? Do I configure Tomcat to use log4j and then try and bridge those messages into logback-classic or is there a less complicated way? In the past I followed these instructions [1] to get Tomcat logging with log4j but would rather just use logback going forward. Thanks, Alex http://mrhaki.blogspot.com/2011/02/configure-log4j-on-tomcat.html