L'envoi et la réception d'un message dans Eclipse et Java ME plateform SDK

Bonjour,

J’ai un programme en Java qui est supposé faire l’envoi et la réception d’un message.
Il s’exécute dans Eclipse mais il ne fait ni l’envoi ni la réception et ne s’exécute pas non plus dans Java ME Platform SDK.

Voila le programme:
Code:
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import javax.microedition.midlet.*;
import javax.microedition.lcdui.*;
import javax.microedition.rms.*;
import javax.microedition.io.*;
import javax.wireless.messaging.*;
 
public class sss extends MIDlet implements CommandListener {
    private Display display;
    private TextField textMesg;
    private TextField dest;
    private Command doneCommand;
    private Command send1Command;
    private Command send2Command;
    private String serverPort;
    private boolean done;
    private MessageConnection sconn;
 
    public sss () throws Exception {
        display = Display.getDisplay(this);
 
        doneCommand = new Command("DONE", Command.SCREEN, 1);
        send1Command = new Command("SEND1", Command.SCREEN, 1);
        send2Command = new Command("SEND2", Command.SCREEN, 1);
 
        serverPort = getAppProperty("serverPort");
    }
 
    public void startApp() {
        try {
            displayBlankForm ();
            sconn = (MessageConnection)
            Connector.open("sms://:" + serverPort);
            done = false;
            new Thread(new SMSServer()).start();
        } catch (Exception e) {
            System.out.print("Error in start");
            e.printStackTrace();
        }
    }
 
    public void pauseApp() {
        done = true;
        try {
            sconn.close();
        } catch (Exception e) {
            System.out.print("Error in pause");
            e.printStackTrace();
        }
    }
 
    public void destroyApp(boolean unconditional) {
        done = true;
        try {
            sconn.close();
        } catch (Exception e) {
            System.out.print("Error in pause");
            e.printStackTrace();
        }
    }
 
    // There are some potentially blocking I/O
    // operations in this callback function.
    // In real world applications, you probably
    // want to move them to a separate thread.
 
    public void commandAction(Command command, Displayable screen) {
        if (command == doneCommand) {
            destroyApp(false);
            notifyDestroyed();
        } else if (command == send1Command) {
            try {
                String addr = "sms://+" + dest.getString();
                MessageConnection conn = (MessageConnection) Connector.open(addr);
                TextMessage msg = (TextMessage) conn.newMessage(MessageConnection.TEXT_MESSAGE);
                msg.setPayloadText( textMesg.getString() );
                conn.send(msg);
                conn.close();
                displayBlankForm ();
            } catch (Exception e) {
                System.out.println("Error in sending");
                e.printStackTrace ();
            }
        } else if (command == send2Command) {
            try {
                String addr = "sms://+" + dest.getString();
                TextMessage msg = (TextMessage) sconn.newMessage(MessageConnection.TEXT_MESSAGE);
                msg.setAddress ( addr );
                msg.setPayloadText( textMesg.getString() );
                sconn.send(msg);
                displayBlankForm ();
            } catch (Exception e) {
                System.out.println("Error in sending");
                e.printStackTrace ();
            }
        }
    }
 
    private void displayBlankForm () throws Exception {
        Form form = new Form ("WMATester");
        textMesg = new TextField("Message", "", 100, TextField.ANY);
        dest = new TextField("Phone No.", "", 20, TextField.ANY);
        form.append( dest );
        form.append( textMesg );
        form.addCommand(doneCommand);
        form.addCommand(send1Command);
        form.addCommand(send2Command);
        form.setCommandListener(
        (CommandListener) this);
        display.setCurrent(form);
    }
 
    class SMSServer implements Runnable {
        public void run () {
            try {
                while (!done) {
                    Message msg = sconn.receive();
                    if (msg instanceof TextMessage) {
                        TextMessage tmsg = (TextMessage) msg;
                        String msgText = tmsg.getPayloadText();
 
                        // Construct the return message
                        TextMessage rmsg = (TextMessage) sconn.newMessage(MessageConnection.TEXT_MESSAGE);
                        rmsg.setAddress ( tmsg.getAddress() );
                        rmsg.setPayloadText( "Message " + msgText + " is received" );
                        sconn.send(rmsg);
 
                        Alert alert = new Alert ("Received", msgText, null, AlertType.ERROR);
                        alert.setTimeout(Alert.FOREVER);
                        display.setCurrent( alert );
                    } else {
                        throw new Exception("Received is not a text mesg");
                    }
                }
            } catch (Exception e) {
                System.out.println("Error in server receiving");
                e.printStackTrace ();
            }
        }
    }
}
Quelqu'un saurait-il me dire ce qui ne va pas ?

Merci d'avance pour votre aide.