Kudos to all the contributors!
I installed the NetBeans IDE 6.0 beta1 yesterday, added the Maven
plug-in from the Tools > Plugins / Available Plugins, grabbed the latest
sources, using NetBeans's built-in Subversion support (it helps to open
the Output Window, Window > Output > Output to see the Subversion
checkout), loaded the Grizzly project and told it build the sources.
Everything built successfully and tested successfully. :-)
charlie ...