Swing help

Hello,

Many thanks for all your efforts with SableVM, it is very exciting. I
am trying to use it under Ubuntu Debian (Gnu/)Linux on an old G4 Mac
(so that's PPC). It built and installed, and it runs! To get things
working with my particular setup, I had to also ln -s things like
tools.jar (from the IBM Java release).

I am currently getting a Swing-related error: "value EXIT_ON_CLOSE is
not a member of javax.swing.JFrame". I do not get that error when
using the IBM version of Java, and that value does exist in JFrame.
That is the only error I get, so it doesn't appear to be something as
simple as e.g.: the VM not finding anything about Swing at all.

(I attempted to find answers through the FAQ and GMANE etc.
information,  but have not found a relevant answer - but it looks like
there are several hits for 'swing' so perhaps if there is a succinct
answer, the FAQ could be updated?)

many thanks for any tips/tricks/pointers!
sincerely.