How many times can i call the start()

Question

Hi All:
I would like to know how many time you can actually call the start(),
cuz my app is doing some really strange things,
here is a fragament of my code:
private void spawnThreads()
ListIterator it = _vWorker.listIterator();
while ( it.hasNext() ) {
ClientWorker client_worker = (ClientWorker) it.next();
client_worker.start();
ClientWorker is another Thread, and in the run() of the ClientWorker, I have
public void run() {
Runtime rt = Runtime.getRuntime();
     try {
     // Start the timer
     Process child = rt.exec(_fileName);
     // gobble any error or output streams
StreamGobbler errorGobbler = new
StreamGobbler(child.getErrorStream(), "ERROR");
StreamGobbler outputGobbler = new
StreamGobbler(child.getInputStream(), "OUTPUT");
errorGobbler.start();
outputGobbler.start();
child.waitFor();
                                        } catch (IOException e) {
               System.err.println("IOException starting process!");
          } catch (InterruptedException e) {
               System.err.println("Interrupted waiting for process!");
I have a couple of cmd files to execute, so This spawnThreads() will be called a couple of times,and the funny thing is , it will execute the first cmd files, and that is it, it won't execute the 2nd or the 3rd cmd files, it will start the thread, but then the run()won't actually gets invoked,,,so I am just wondering if anyone of you has encountered this problem, perhaps you could lend me some insight on this?
thanks,

Answer 1

Yes, you can run the start() of a Thread more than once,
here is my Test App,
public static void main(String[] args) throws Exception {
Vector vec = new Vector();
for (int i=0;i<4;i++){
ClientThread ct = new ClientThread();
vec.add(ct);
ListIterator it = vec.listIterator();
while(it.hasNext()){
ClientThread ct = (ClientThread)it.next();
ct.start();
and as you have already guessed it the run() of ClientThread simply does system.out.println()
and here is the output
run started
run started
run started
run started
so..yeah..I don't really have any idea what is happening to my app and why it is not executing any cmd files after executing the very first cmd file