[patch] java run-time stack trace

[Tom Tromey]

>>>>> "Andrew" == Andrew Haley <aph@redhat.com> writes:

Andrew> It's clear that people have very different requirements for
Andrew> backtrace: any change should be configurable, and IMO runtime
Andrew> configurable.

We could introduce a System property for this.
Classpath does that all over the place.

Then people could specify it at compile time (gcj -D) or at runtime
(via gij or System.setProperty).

Tom