Problem Getting Thread to Stop

Question

Hello,
I am simulating a race. When the winner has been determined, I need to stop the other threads since the race is over. Here is the code that I have with regards to stopping the threads:
public void simulateTravelTime() {
try {
Thread.sleep((int)(Math.random() * distance * 10));
//Terminate thread execution if the thread is interrupted.
catch (InterruptedException e) {
requestStop();
public void requestStop() {
stopThread = true;
public void run() {
while (!stopThread && (waterInBucket < fullBucket)) {
//Code to simulate the race and determine if there is a winner.
//If there's a winner, stop all threads.
if (winner == true) {
int n = group.activeCount();
Thread[] activeThreads = new Thread[n];
group.enumerate(activeThreads);
for(int i=0; i<n; i++)
activeThreads.requestStop();
//Interrupt the other threads in case they're sleeping.
group.interrupt();
It doesn't like the activeThreads[i].requestStop(); line. Anyone know how to alter my code to fix the problem?
Thx.

Answer 1

Ahh, I see. Didn't notice that before.
Okay, I gotta run, but off the top of my head, I think one of the following should work. I prefer the first:
* When you create the threads, give each one a name that matches it up to your class. Your clas needs to have a name field to match on, or else a separate map maps the name to the Runnable (your class).
OR
* Have your class extend Thread.