How to automate accept client of the server side?

Question

Hi.....
I am a beginner of using J2ME to developing my final year project. I have some problem of using bluetooth packet. I can't accept again the client message when the server accepted before. Any one can solve my problem? How can I using the loop or timer to accept the client message without using acceptAndOpen() packet? Thank a lot.....
The sample code is here:
- Server side
public class BluetoothServer implements Runnable {
     private GameMIDlet gameMIDlet;
     private HandleSetting setting;
     private HandleScore score;
     private ScreenGame screenGame;
     private int playerMethod;
     //private GUIGameServer guiGameServer;
StreamConnectionNotifier notifier;
StreamConnection conn;
LocalDevice localDevice;
ServiceRecord serviceRecord;
InputStream input;
OutputStream output;
private boolean isInit;
private boolean isReady;
private static String serverUrl = "btspp://localhost:" + ScreenMultiPlay.SHARE_UUID + ";name=GameServer;authorize=true";
public BluetoothServer(GameMIDlet gameMIDlet,HandleSetting setting, HandleScore score, int playerMethod) {
     this.gameMIDlet = gameMIDlet;
this.setting = setting;
          this.score = score;
          this.playerMethod = playerMethod;
     isReady = false;
isInit = false;
Thread accepterThread = new Thread(this);
accepterThread.start();
public void run() {
if (!isInit) {
// Initialization is done in the thread to avoid dead lock 'isInit' ensures it is done once only
try {
conn = null;
localDevice = LocalDevice.getLocalDevice();
localDevice.setDiscoverable( DiscoveryAgent.GIAC );
notifier = (StreamConnectionNotifier)Connector.open(serverUrl);
} catch (BluetoothStateException e) {       
System.err.println( "BluetoothStateException: " + e.getMessage() );
} catch (IOException e) {       
System.err.println( "IOException: " + e.getMessage() );
isInit=true;
System.out.println( "Starting Echo Server" );      
try {
System.out.println("\n\nServer Running...");
isReady=true;
if (isReady) {
     try {
                    screenGame = new ScreenGame(this.gameMIDlet,this.setting,this.score,playerMethod);
          screenGame.start();
Display.getDisplay(gameMIDlet).setCurrent(screenGame);
               } catch(Exception e) {
                    gameMIDlet.showErrorMsg(null);
// Pauses thread until Transmission occurs
conn = notifier.acceptAndOpen();
// Read Data Transmission
String msg = ScreenMultiPlay.readData(conn);
System.out.println("Received Message from Client: " + msg);
// Send Back a Message
msg = "Hello Back from Server";
output = conn.openOutputStream();
output.write(msg.length()); // length is 1 byte
output.write(msg.getBytes());
output.close();
} catch (Exception ex) {
System.err.println("Bluetooth Server Running Error: " + ex);     
public void destroy() {
//isClosed = true;
// finilize notifier work
if (notifier != null) {
try {
notifier.close();
isInit=false;
} catch (IOException e) {} // ignore
// wait for acceptor thread is done
/*try {
accepterThread.join();
} catch (InterruptedException e) {} // ignore*/
-Client side
class BluetoothClient implements DiscoveryListener {
     private GameMIDlet gameMIDlet;
     private HandleSetting setting;
     private HandleScore score;
     private ScreenGame screenGame;
     private int playerMethod;
private DiscoveryAgent discoveryAgent;
private RemoteDevice[] remoteDevices;
private UUID[] uuidSet;
private String serviceUrl;
public BluetoothClient(GameMIDlet gameMIDlet,HandleSetting setting, HandleScore score, int playerMethod) {
this.gameMIDlet = gameMIDlet;
this.setting = setting;
          this.score = score;
          this.playerMethod = playerMethod;
try {
LocalDevice localDevice = LocalDevice.getLocalDevice();
discoveryAgent = localDevice.getDiscoveryAgent();      
discoveryAgent.startInquiry(DiscoveryAgent.GIAC, this);
//-----go to deviceDiscovered()-----------------
} catch (Exception e) {
System.out.println(e);
public void deviceDiscovered(RemoteDevice btDevice, DeviceClass cod) {
try {
// Get Device Info
System.out.println("Device Discovered");
System.out.println("Major Device Class: " + cod.getMajorDeviceClass() + " Minor Device Class: " + cod.getMinorDeviceClass());
System.out.println("Bluetooth Address: " + btDevice.getBluetoothAddress());
System.out.println("Bluetooth Friendly Name: " + btDevice.getFriendlyName(true));
// Search for Services
uuidSet = new UUID[1];
uuidSet[0] = ScreenMultiPlay.SHARE_UUID;
int searchID = discoveryAgent.searchServices(null,uuidSet,btDevice,this);
//-------------go to inquiryCompleted()----------------------
} catch (Exception e) {
System.out.println("Device Discovered Error: " + e);     
public void inquiryCompleted(int discType) {
System.out.println("InquiryCompleted");
//---------------go to servicesDiscovered()------------------------
public void servicesDiscovered(int transID, ServiceRecord[] servRecord) {
System.out.println("ServicesDiscovered");
// in this example there is only one service
for(int i=0;i<servRecord.length;i++) {      
serviceUrl = servRecord.getConnectionURL(0,false);
//---------------go to serviceSearchCompleted()--------------------
public void serviceSearchCompleted(int transID, int responseCode) {   
if(responseCode == SERVICE_SEARCH_ERROR)
System.out.println("SERVICE_SEARCH_ERROR\n");
if(responseCode == SERVICE_SEARCH_COMPLETED) {
System.out.println("SERVICE_SEARCH_COMPLETED\n");
System.out.println("Service URL: " + serviceUrl);
StreamConnection conn = null;
try {
     String msg = "Say Hello World";
conn = (StreamConnection)Connector.open(serviceUrl);
OutputStream output = conn.openOutputStream();
output.write(msg.length());
output.write(msg.getBytes());
output.close();
System.out.println(ScreenMultiPlay.readData(conn));
} catch (Exception ex) {
     System.out.println(ex);
} finally {
     try {
     conn.close();
     } catch (IOException ioe) {
     System.out.println("Error Closing connection " + ioe);
if(responseCode == SERVICE_SEARCH_TERMINATED)
System.out.println("SERVICE_SEARCH_TERMINATED\n");
if(responseCode == SERVICE_SEARCH_NO_RECORDS)
System.out.println("SERVICE_SEARCH_NO_RECORDS\n");
if(responseCode == SERVICE_SEARCH_DEVICE_NOT_REACHABLE)
System.out.println("SERVICE_SEARCH_DEVICE_NOT_REACHABLE\n");

Answer 1

This question isn't logical at all. You don't execute javascript on the server. But if you want to waste time on it. .. look at Rhino http://www.mozilla.org/rhino/
Best of luck...