how to reduce the thread sleep time and wake up the thread

[baktha.thalapathy]

the thread time is above 3000 , how to wake up the thread for particular time period

package tcplistener;

import java.io.IOException;
import java.io.InputStream;
import java.net.ServerSocket;
import java.net.Socket;
import java.util.Properties;
import java.util.Timer;
import java.util.TimerTask;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class PortListener extends HttpServlet {
   private Socket sock;
   private ServerSocket serverSocket;
   private Thread t ;
   private Timer timer;
   private int a = 0;

    
public void init() throws ServletException

{
    try{
            timer = new Timer();
            timer.schedule(new ToDoTask(), 5000);


    }catch(Exception ex)
    {
       Logger.getLogger(PortListener.class.getName()).log(Level.SEVERE, null, ex) ;
    }
}

class ToDoTask extends TimerTask
 {
   public void run()
    {
       int port = 0;
       try
        {
                timer.cancel();
                InputStream is = getServletContext().getResourceAsStream("/WEB-INF/navl.properties");
                Properties  p  = new Properties();
                p.load(is);
                is.close();
                String pro = p.getProperty("dataPort");
                port = Integer.parseInt(pro);
                serverSocket = new ServerSocket(port);

        while (true)
        {


            System.out.println("Listening on ...... " + port);
            sock = serverSocket.accept();
            synchronized(this)
            {
                    t = new Thread(new ModuleHandler(sock));
                    t.start();
            }
            }

        }
        catch(Exception ee)
       {
       
       }
    }



  }



    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException {

   }




    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException {
        processRequest(request, response);
    }

    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException {
        processRequest(request, response);
    }

        @Override
    public String getServletInfo() {
        return "Short description";
    }
}

Any wrong in the above code please help me any body having idea

[Norm]

To wake up a sleeping thread, use the interrupt() method.

I don't see where in the code you want to disturb the sleeping thread.
In face I don't see an calls to sleep().

[Eranga]

Even you can change the sleep time in sleep() dynamically.