From: <glassfish_at_javadesktop.org>
Date: Tue, 18 Mar 2008 18:01:46 PST

Yes, I mention this limitation in my blog about using Apache's LB with GlassFish (http://blogs.sun.com/jluehe/entry/supporting_apache_loadbalancer_with_glassfish):

  Please notice that when you follow the configuration steps referenced above, you must use the
  tomcat-ajp.jar from Tomcat 5.5.23. Using the tomcat-ajp.jar bundled with a more recent Tomcat
  release will not work.

and I think so does Jeanfrancois in his blog about enabling tomcat-ajp with GlassFish.
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