Slow new DatagramSocket()

Question

I have an applet which creates a DatagramSocket. Creating the socket takes about 10-13 seconds. When running the same code on my machine within eclipse it is not this slow. Why does it take so long?
Full code:
public class ChessApplet extends JApplet {
     private UDPReceiver receiver;
     private DatagramSocket socket;
     private Thread thread;
     private UDPSendImpl sender;
     private ChatController chatController;
     private MoveLossHandler moveLossHandler;
     private ChessController chessController;
     @Override
     public void init() {
          initGUI(getParameter("serverIp"));
     @Override
     public void destroy() {
          socket.close();
     private void initGUI(final String serverIp) {
          if (SwingUtilities.isEventDispatchThread()) {
               doInit();
          } else {
               try {
                    SwingUtilities.invokeAndWait(new Runnable() {
                         public void run() {
                              doInit();
               } catch (Exception e) {
                    Util.log(e);
          new Thread(new Runnable() {
               public void run() {
                    try {
                         socket = new DatagramSocket();
                         sender = new UDPSendImpl(serverIp, socket);
                         chatController.setSender(sender);
                         moveLossHandler.setSender(sender);
                         receiver = new UDPReceiver(moveLossHandler, chessController, chatController, socket);
                         thread = new Thread(receiver);
                         thread.start();
                         sender.requestAllGames();
                         SwingUtilities.invokeLater(new Runnable() {
                              public void run() {
                                   moveLossHandler.setSender(sender);
                                   chatController.setSender(sender);
                                   chatController.setChatLoginButtonEnabled(true);
                    } catch (final Exception e) {
                         SwingUtilities.invokeLater(new Runnable() {
                              public void run() {
                                   JOptionPane.showMessageDialog(null, "Unable to start application: " + e.getMessage());
          }).start();
     private void doInit() {
          try {
               UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
          } catch (Exception e) {
               e.printStackTrace();
          try {
               JPanel top = new JPanel(new BorderLayout());
               top.setBorder(BorderFactory.createLineBorder(Color.BLACK));
               ChatView chatView = new ChatView();
               chatController = new ChatController(chatView);
               JMultipleChessView chessView = new JMultipleChessView();
               chessController = new ChessController(chessView);
               moveLossHandler = new MoveLossHandler(chessController);
               JSplitPane split = new JSplitPane(JSplitPane.VERTICAL_SPLIT, chessView, chatView);
               split.setDividerSize(4);
               split.setBorder(BorderFactory.createEmptyBorder());
               split.setDividerLocation(0.7d);
               split.setResizeWeight(0.7d);
               top.add(new HeaderPanel(), BorderLayout.NORTH);
               top.add(split, BorderLayout.CENTER);
               setSize(new Dimension(800, 600));
               add(top);
          } catch (Exception e) {
               Util.log(e);
     public static JFrame startGUI(String host) throws Exception {
          JFrame frame = new JFrame("Test Frame");
          frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
          frame.setSize(800, 600);
          frame.setLocationRelativeTo(null);
          ChessApplet comp = new ChessApplet();
          comp.initGUI(host);
          frame.getContentPane().add(comp);
          frame.setVisible(true);
          return frame;
     public static void main(String[] args) throws Exception {
          startGUI("tyken.net");
}

Answer 1

Tyken wrote:
I have an applet which creates a DatagramSocket. Creating the socket takes about 10-13 seconds. When running the same code on my machine within eclipse it is not this slow. Why does it take so long?
Full code:
     private UDPSendImpl sender; // Full code? Where is this class defined?
     private void initGUI(final String serverIp) {
          new Thread(new Runnable() {
               public void run() {
                    try {
                         socket = new DatagramSocket();
                         sender = new UDPSendImpl(serverIp, socket);
     public static void main(String[] args) throws Exception {
          startGUI("tyken.net");
Does "ping tyken.net" take the same time to resolve the hostname on these two systems?