You are doing it a bit wrong. The philosophy with executors is that you implement the work unit as a Runnable or a Callable (instead of a Thread). Each Runnable or Callable should do one atomic piece of work which is mutually exclusive of other Runnables or Callables.
Executor services internally use a pool of threads so your creating a thread group and Thread is not doing any good.
Try this simple piece:
ExecutorService executor = Executors.newFixedThreadPool(5);`
executor.execute(new MyRunnableWorker());
public class MyRunnableWorker implements Runnable{
private String ip;
private String threadName;
private int threadTimeout = 10;
public MyRunnableWorker(String ip){
this.ip = ip;
}
public MyRunnableWorker(String ip,int threadTimeout,String threadName){
this.ip = ip;
this.threadTimeout = threadTimeout;
this.threadName = threadName;
System.out.prinln("MyRunnableWorker constructor has been called!");
}
@Override
public void run(){ {
// do some stuff that takes time ....
}
}
This would give you what you want. Also try to test you thread code execution using visualVM to see how threads are running and what the load distribution.