It might be useful to garner an enumeration of all thread groups and theirthreads in your running application. The following method shows you how todo that:

 public void printOutThreadGroups(){    //create a thread    Thread t = new Thread();    //get the current thread    Thread tt = t.currentThread();    //get the thread group of current thread    ThreadGroup tg = tt.getThreadGroup();    ThreadGroup topMost = null;    //find the topmost thread group    while(tg != null)    {        topMost = tg;        tg = tg.getParent();    }    //get an estimate of active thread groups under topMost    int groupCount = topMost.activeGroupCount();    //get an enumeration of thread groups under topMost    ThreadGroup[] tgArray = new ThreadGroup[groupCount];    topMost.enumerate(tgArray, true);    //for every thread group under topMost, print out the 
active threads    System.out.println("Top Most ThreadGroup: ""+topMost.getName()+       "" has the following Thread Groups:");    System.out.println("**********************");    for(int i=0; i