public static void dumptg(ThreadGroup tg, PrintWriter out) {
if (tg == null) {
tg = Thread.currentThread().getThreadGroup();
while (tg.getParent() != null) tg = tg.getParent();
}
dumptg(tg, out, 0);
out.flush();
}
private static void dumptg(ThreadGroup tg, PrintWriter out, int indent) {
for (int o = 0; o < indent; o++) out.print("\t");
out.println("G: \"" + tg.getName() + "\"");
Thread[] ths = new Thread[tg.activeCount() * 2];
ThreadGroup[] tgs = new ThreadGroup[tg.activeGroupCount() * 2];
int nt = tg.enumerate(ths, false);
int ng = tg.enumerate(tgs, false);
for (int i = 0; i < nt; i++) {
Thread ct = ths[i];
for (int o = 0; o < indent + 1; o++) out.print("\t");
out.println("T: \"" + ct.getName() + "\"");
}
for (int i = 0; i < ng; i++) {
ThreadGroup cg = tgs[i];
dumptg(cg, out, indent + 1);
}
}