Configure Glassfish v3 Client-Auth Requested to want

Question

I'm using GlassFish v3 (build 74.2) with client certificate authentication. I'd like to make the certificate authentication optional (want, not need).

It seems this is possible based on this blog post, but I can't get it to work.
http://blogs.sun.com/kalpana/entry/client_auth_requested_in_glassfish

I've tried adding a system property, and properties in all the elements in my domain.xml as suggested in the blog post, but none of them seem to work.

<property name="com.sun.grizzly.ssl.auth" value="want"/>