j2me bluetooth input stream reader

Mam problem z przesylem tekstu pomiedzy dwoma urzadzeniami (w j2me) przez bluetooth. Moj program na poczatku wyszukuje urzadzenia, nastepnie uslugi. Z uslug tworzy liste z ktorej mozna wybrac pod ktora sie podlaczyc (jedna z komend to umozliwia). Niestety pierwsza linia w kodzie wykonania dla tej komendy:

notifier = (StreamConnectionNotifier) Connector.open(url);

rzuca wyjatek (Class Cast Exception). Prawdopodobnie nie mozna rzutowac Connector-a na StreamConnectionNotifier. Staram sie znalezc rozwiazanie ktore umozliwi zczytywanie tekstu przesylanego na moje urzadzenie z innych. Chodzi mi o otwarcie input stream i zczytywanie byte'ow ... czy jest to mozliwie?

z gory dzieki

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

import java.io.IOException;
(many imports)
import javax.microedition.midlet.*;

/**
 * @author bart
 */
public class btMidlet extends MIDlet implements CommandListener, DiscoveryListener, Runnable {

    private Alert al = new Alert("title", "text", null, AlertType.INFO);
    private List list = new List("Devices:", List.IMPLICIT);
    private Vector devices = new Vector();
    private Vector records = new Vector();
    private Command chooseDevice = new Command("info", Command.OK, 0);
    private Command connectDevice = new Command("connect", Command.OK, 0);
    private Command viewLogs = new Command("view logs", Command.OK, 0);
    private boolean inqCompleted = false;
    private int servSearchCode;
    private UUID RFCOMM_UUID = new UUID(0x0003);
    private StreamConnection con = null;
    private StreamConnectionNotifier notifier = null;

    public btMidlet() {
        al.setTimeout(Alert.FOREVER);
        list.addCommand(chooseDevice);
        list.addCommand(connectDevice);
        list.addCommand(viewLogs);
        list.setCommandListener(this);
    }

    public void commandAction(Command c, Displayable d) {
        try {

            int id = list.getSelectedIndex();
            ServiceRecord btRecord = (ServiceRecord) records.elementAt(id);
            String url = btRecord.getConnectionURL(ServiceRecord.NOAUTHENTICATE_NOENCRYPT, false);
            String friendlyName = btRecord.getHostDevice().getFriendlyName(true);

            if (c == chooseDevice) {
                al.setTitle("Service info");
                al.setString(
                        "friendly name: " + friendlyName +
                        ", url: " + url);

            } else if (c == connectDevice) {

                notifier = (StreamConnectionNotifier) Connector.open(url);
                con = notifier.acceptAndOpen();
                InputStream is = con.openInputStream();

                // READING DATA FROM INPUT STREAM
            } else if (c == viewLogs) {
                getDisplay().setCurrent(al);
            }

        } catch (Exception ex) {
            ex.printStackTrace();
        }
    }

    public Display getDisplay() {
        return Display.getDisplay(this);
    }

    public void startApp() {
        this.run();

        getDisplay().setCurrent(list);
    }

    public void pauseApp() {
    }

    public void destroyApp(boolean unconditional) {
    }

    public void deviceDiscovered(RemoteDevice btDevice, DeviceClass dc) {
        if (devices.indexOf(btDevice) == -1) {
            System.out.println("found: " + btDevice.getBluetoothAddress());
            devices.addElement(btDevice);
        }
    }

    public void servicesDiscovered(int transID, ServiceRecord[] servRecord) {
        for (int i = 0; i < servRecord.length; i++) {
            records.addElement(servRecord[i]);
        }
    }

    public void serviceSearchCompleted(int transID, int respCode) {
        synchronized (this) {
            servSearchCode = respCode;
            notify();
        }
    }

    public void inquiryCompleted(int discType) {
        synchronized (this) {
            inqCompleted = true;
            notify();
        }
    }


    public synchronized void run() {
        try {
            DiscoveryAgent discoveryAgent = null;

            LocalDevice localDevice = LocalDevice.getLocalDevice();
            discoveryAgent = localDevice.getDiscoveryAgent();
            discoveryAgent.startInquiry(DiscoveryAgent.GIAC, this);

            while (!inqCompleted) {
                wait();
            }

            for (int i = 0; i < devices.size(); i++) {
                RemoteDevice device = (RemoteDevice) devices.elementAt(i);
                UUID[] uuidSet = new UUID[1];
                uuidSet[0] = RFCOMM_UUID;
                discoveryAgent.searchServices(null, uuidSet, device, this);
                wait();
            }

            String url = null;

            for (int i = 0; i < records.size(); i++) {
                ServiceRecord btrec = (ServiceRecord) records.elementAt(i);
                url = btrec.getConnectionURL(ServiceRecord.NOAUTHENTICATE_NOENCRYPT, false);
                list.append(url, null);
            }

        } catch (Exception ex) {
            ex.printStackTrace();
        }

    }
}