[moved] SIP Receiver on Nokia 3110

[hussainm]

HI I am trying to run a SIP listernet on a nokia 3110 The application snipet works in th eemulator but when i download to phone it generates a error "Uncaught exception java/lang/NoClassDefFoundError: SIP/MySIP2: javax/microedition/sip/SipServerConnectionListener ."

code is:-

package SIP;

import java.util.*;
import java.io.*;
import javax.microedition.io.*;
import javax.microedition.midlet.*;
import javax.microedition.lcdui.*;

import javax.microedition.sip.*;

public class MySIP2 extends MIDlet
    implements CommandListener, SipServerConnectionListener  {

    private Display display;
    private long startTime;
    private Form form;
    private TextField receivePort;
    private Command receiveCmd;
    private Command exitCmd;
    SipConnectionNotifier scn = null;
    SipServerConnection ssc = null;

    public MySIP2() {

        try
        {
        System.out.println("MIDlet: SipMIDlet starting...");
        display=Display.getDisplay(this);
        form = new Form("Receive Message");
        receivePort = new TextField
            ("Give receive port:", "sip:5080", 30,
            TextField.LAYOUT_LEFT);
        form.append(receivePort);
        receiveCmd = new Command("Start", Command.ITEM, 1);
        exitCmd = new Command("Exit", Command.EXIT, 1);
        form.addCommand(receiveCmd);
        form.addCommand(exitCmd);
        form.setCommandListener(this);
        Thread t = new Thread() {
                public void run() {
                receiveMessage();
                }
            };
            t.start();
        }  catch(Exception ex) {
            ex.printStackTrace();
        }

    }

    public void commandAction(Command c, Displayable d) {
        if(c == receiveCmd) {
            Thread t = new Thread() {
                public void run() {
                receiveMessage();
                }
            };
            t.start();
        }
        if(c == exitCmd) {
            if(scn != null) {
                try {
                    scn.close();
                }
                catch(IOException iox) {
                }
            }
            destroyApp(true);
        }
    }

    public void startApp() {
        display.setCurrent(form);
        System.out.println("MIDlet: SipMIDlet startApp()");
    }

    public void receiveMessage() {
        try {
            if(scn != null)
            scn.close();
            scn = (SipConnectionNotifier)
                Connector.open(receivePort.getString());
            scn.setListener(this);
            form.append("Listening... in port: "+scn.getLocalPort());
        } catch(Exception ex) {
            ex.printStackTrace();
        }
    }

    public void notifyRequest(SipConnectionNotifier scn) {
        try {
            ssc = scn.acceptAndOpen();
            if(ssc.getMethod().equals("MESSAGE")) {
            String contentType = ssc.getHeader("Content-Type");
            String contentLength = ssc.getHeader("Content-Length");
            int length = Integer.parseInt(contentLength);
            if((contentType != null) &&
                contentType.equals("text/plain")) {
                InputStream is = ssc.openContentInputStream();
                int i=0;
                byte testBuffer[] = new byte[length];
                i = is.read(testBuffer);

                String tmp = new String(testBuffer, 0, i);

                StringItem st = new StringItem
                    ("Subject:", ssc.getHeader("Subject"));
                form.append(st);
                st = new StringItem("Message:", tmp);
                form.append(st);
            }
            ssc.initResponse(200);
            ssc.send();
        }

        } catch(IOException ex) {
            form.append("Exception: "+ex.getMessage());
        }

    }

    public void pauseApp() {
        System.out.println("MIDlet: pauseApp()");
    }

    public void destroyApp(boolean b) {
        System.out.println("MIDlet: destroyApp()");
        notifyDestroyed();
    }


     public
class LinkageError extends Error {
     public LinkageError() {
          super();
      }

     public LinkageError(String s) {
          super(s);
      }
   }

   public
  class NoClassDefFoundError extends LinkageError {
     /**
       * Constructs a <code>NoClassDefFoundError</code> with no detail message.
       */
       public NoClassDefFoundError() {
         super();
      }

       /**
        * Constructs a <code>NoClassDefFoundError</code> with the specified
        * detail message.
      *
         * @param   s   the detail message.
      */
      public NoClassDefFoundError(String s) {
           super(s);
     }
   }

}

[kammoham]

Hi
Have you found a solution to this problem? Appreciate if you could share with me.

[grahamhughes]

That error would suggest that the device you are using does not support the SIP API (JSR180). Check the specification for your device in the device specifications section.

Graham.