DatagramChannel I/O

Question

I have the following code and I can't figure out why it's looping out of control. If it only reads messages sent to it, it's fine and works as it should. If you try to write to the channel after reading, it goes into an infinite loop and doesn't stop. Anyone see something wrong with my code? I can't figure it out.
    ByteBuffer send = ByteBuffer.allocate(10);
    send.put((byte)'G');
    send.put((byte)'O');
    send.put((byte)'T');
    send.put((byte)' ');
    send.put((byte)'M');
    send.put((byte)'S');
    send.put((byte)'G');
    send.flip();
    //Allocate buffers
    ByteBuffer dst = ByteBuffer.allocateDirect(100);
    CharBuffer charBuffer = CharBuffer.allocate(100);
    DatagramChannel channel = DatagramChannel.open();
    channel.configureBlocking(false);
    DatagramSocket socket = channel.socket();
    InetSocketAddress isA = new InetSocketAddress(InetAddress.getByName("0.0.0.0"),4162);
    socket.bind(isA);
    boolean run = true;
    //New selector code!!
    while(run){
      Selector selector = Selector.open();
      channel.register(selector,SelectionKey.OP_READ);
      System.out.println("Channel registered,Selector opened");
      while(selector.isOpen()){
        int n = selector.select(50);
        if(n==0){
          //Nothing to do
          Thread.sleep(100);  //leave some room for other processes
          continue;
        //Get set of ready objects
        Iterator it = selector.selectedKeys().iterator();
        System.out.println("Iterator setup");
        //Look at each key in the set
        while(it.hasNext()){
          SelectionKey key =(SelectionKey)it.next();
          if(key.isReadable()){
            //read what is ready
            //Get Channel
            DatagramChannel dChannel = (DatagramChannel)key.channel();
            dst.clear();
            SocketAddress a = dChannel.receive(dst);
            System.out.println("Datapacket read from: " + a.toString() );
            dst.flip(); //Make buffer readable
            System.out.println("\n");
            for(int i=0; i < dst.limit(); i++ ){
              System.out.print((char)dst.get(i));
            dst.clear();
          }//End if readable
          it.remove();   //Remove key it's been handled
          channel.send(send,new InetSocketAddress(InetAddress.getByName("192.168.1.255"),4162));
        }//End while iterator
        selector.close();
      }//End while selector
    }

Answer 1

I made the changes to the code and here's what it's at now. If you see anything else that's strange let me know.
      Selector selector = Selector.open();
      channel.register(selector,SelectionKey.OP_READ);
      System.out.println("Channel registered,Selector opened");
      while(selector.isOpen()){
        int n = selector.select(50);
        if(n==0){
          //Nothing to do
          Thread.sleep(100);  //leave some room for other processes
          continue;
        //Get set of ready objects
        Iterator it = selector.selectedKeys().iterator();
        System.out.println("Iterator setup");
        //Look at each key in the set
        while(it.hasNext()){
          SelectionKey key =(SelectionKey)it.next();
          if(key.isReadable()){
            //read what is ready
            //Get Channel
            DatagramChannel dChannel = (DatagramChannel)key.channel();
            dst.clear();
            SocketAddress a = dChannel.receive(dst);
            System.out.println("Datapacket read from: " + a.toString() );
            dst.flip(); //Make buffer readable
            System.out.println("\n");
            for(int i=0; i < dst.limit(); i++ ){
              System.out.print((char)dst.get(i));
            send.flip();
            channel.send(send,new InetSocketAddress(InetAddress.getByName("192.168.1.255"),4162));
            send.rewind();
          }//End if readable
          it.remove();   //Remove key it's been handled         
        }//End while iterator
        selector.close();
      }//End while selector