Patch: java.lang.ThreadGroup merge

[Tom Tromey]

Bryce> I merged the ThreadGroup classes from libgcj and classpath.

Thanks Bryce.

Bryce> The result should be cleaner and have less bugs then either of
Bryce> its ancestors (I noticed various different bugs in both
Bryce> versions while working on it).

I like to hear things like this.

One note.  Currently you use the libgcj header for the file.  I
recommend following the Classpath style instead.

Bryce> /* java.lang.ThreadGroup
Bryce>    Copyright (C) 1998, 2000 Free Software Foundation, Inc.
 
Bryce> This file is part of libgcj.

Bryce> This software is copyrighted work licensed under the terms of the
Bryce> Libgcj License.  Please consult the file "LIBGCJ_LICENSE" for
Bryce> details.  */

Tom