Hi,



Please look at the following code:-

			

			import java.net.*;
			

			import java.io.*;
			

			

			public class EmailServer extends Thread{
			

			private Thread emailServerThread;
			

			public EmailServer(){}
			

			

			public void run(){
			

			int i = 1;
			

			System.out.println("Inside RUN");
			

			try {
			

			ServerSocket s = new ServerSocket(62389);/* poor code: static port # */
			

			emailServerThread = Thread.currentThread();
			

			

			while( emailServerThread == Thread.currentThread() ){
			

			System.out.println("Inside while");
			

			Socket incoming = s.accept( );//////THIS LINE IS CAUSING THE PROBLEM, even though "stop2()" updates "emailServerThread" to null, but the blocking call "s.accept" is not returning, hence the run method never exits.
			

			

			System.out.println("Spawning " + i);
			

			//new ThreadedEchoHandler(incoming, i).start();
			

			new EmailServerHandler(incoming, i).start();
			

			/* Note the use of "i" as a tool to observe the concurrency between multiple clients. */
			

			i++;
			

			}//while
			

			} catch (Exception e){
			

			System.out.println(e);
			

			}
			

			System.out.println("EmailServer: Got out of RUN() method !!!");
			

			}
			

			public void stop2(){
			

			System.out.println("Inside STOP2");
			

			emailServerThread = null;
			

			}
			

			}
			

			// ****************************************************
			

			class EmailServerHandler extends Thread {
			

			

			private Socket incoming;
			

			private int counter;
			

			

			public EmailServerHandler(Socket i, int c) {
			

			incoming = i; counter = c;
			

			}
			

			

			public void run() {
			

			// Something ....
			

			}
			

			}