Cannot Stop Thread with ServerSocket

Question

Hi
I have a problem with a Thread that runs a ServerSocket. I want to stop this Thread from the main-application:
Thread class:
Constructor:
serverSocket = new ServerSocket(address, port);
public void run() {...
while (true) { ....
clientSocket = serverSocket.accept();
I want to do the following in the main-application:
because I want to set up a Thread with a new ServerSocket:
myThread = null; // to stop the Thread, I also have tried to interrupt without success
myThread = new Thread(); // => BindException and serverSocket == null;
I always catch a BindException and in the Thread-Constructor the serverSocket is set null !
How can I avoid this?
I need to get a new serverSocket!!
Can anyone help me?
thanks, walter

Answer 1

Thank's for reply: The problem I have is the following: My domain has a dynamic IP, so after the IP changes the s.accept() does not work any more!
try // Point 1 *)
ServerSocket s = new ServerSocket(portNumber);
for(;;)     
Socket incoming = s.accept(); // does not work after IP changes
new ThreadedEchoHandler(incoming, i).start();
So I have to detect that the IP has changed and have to start again at Point 1
How can I do this?
thx walter