Write to socket hange the process

Question

Hi, my program uses sockets. All is fine, but when the other side suddenly shut downs, my process
stays hung into the write system call. According to pStack, my process is also stuck on the
close system call (Since it noticed that the other side was shut down). What happeded ? did the process entered some deadlock because trying to close a socket that is trying to write to it??
I can't even receive any terminating signals, when normally I receive them with no problem.
Please help!!!

Answer 1

This is what I get, what do you get:
java -server Loopback1000000 messages in 3004 ms
1000000 messages in 2752 ms
1000000 messages in 2706 ms
1000000 messages in 2728 ms
import java.io.*;
import java.net.*;
public class Loopback
    static final int PORT = 6666;
    public static void main(String args[])
     throws Exception
     new Listener().start();
     Socket socket = new Socket("localhost", PORT);
     DataOutputStream out = new DataOutputStream(new BufferedOutputStream(socket.getOutputStream()));
     int count = 0;
     long start_time = System.currentTimeMillis();
     while (true) {
         out.writeBytes("hello world");
         out.flush();
         if (++count % 1000000 == 0) {
          long now = System.currentTimeMillis();
          System.out.println("1000000 messages in " + (now - start_time) + " ms");
          start_time = now;
    static class Listener
     extends Thread
     ServerSocket server_socket;
     Listener()
         throws IOException
         server_socket = new ServerSocket(PORT);
     public void run()
         try {
          while (true) {
              Socket socket = server_socket.accept();
              InputStream in = socket.getInputStream();
              byte buf[] = new byte[8192];
              while (true) {
               if (in.read(buf) == -1)
                   break;
              in.close();
              socket.close();
         } catch (IOException e) {
          System.out.println("error in listener: " + e);
}