One of the
principles of GlassFish
is to encourage the adoption of its components,
and, as part of that, we attempt to make those components portable.
Vivek had already reported that
only depended on Servlet 2.4 and would run on Jetty
(and others), and
now Arun provides the specific instructions to achieve this,
including the WSIT/Tango features.
Check the installation details atArun's writeup