According to Eric Schrock, it looks like the upcoming release of Solaris Express will have enhancements which will allow pstack to display java frames. [read all about it]
Moazam Rajas Sun hosted weblog garbage collection II
Thursday Jul 01, 2004
Rendezvous service discovery is now callable from Java. Darwin CVS now contains Java libraries which allow Java clients to access the underlying Rendezvous facilities on Mac OS X Tiger, Windows, and POSIX systems.
[link]
