// we want to see all top-level thread groups
        ThreadGroup tg = Thread.currentThread().getThreadGroup();
        while (tg.getParent() == null) {
            tg = tg.getParent();
        }

        ThreadGroup[] tgList = new ThreadGroup[tg.activeGroupCount()];
        tg.enumerate(tgList);

        boolean seen = false;

        for (ThreadGroup aTgList : tgList) {

    }

    /**
     * ThreadCreator for creating daemon threads with fixed ThreadGroup-name.
     */
    @Deprecated
    static final class DaemonThreadCreator implements ThreadFactory {
        static final String THREADGROUP_NAME = "org.apache.maven.artifact.resolver.DefaultArtifactResolver";

        static final ThreadGroup GROUP = new ThreadGroup(THREADGROUP_NAME);