почему код компилируется но на сотовом при запуске показывает только строки Midlet и Hello.Midlet

package Hello;
import java.io.*;
import javax.microedition.lcdui.*;
import javax.microedition.media.*;
import javax.microedition.midlet.MIDlet;
public class VideoCam extends MIDlet implements CommandListener {
    Display display;    
    Form form = new Form("Video");
    Command exit = new Command("Выход", Command.EXIT, 1);    
    Command start = new Command("Начать", Command.ITEM, 1);    
    Command stop = new Command("Остановить", Command.ITEM, 1);    
    String url;    
    Player player;    
    VideoControl videoControl;    
    Item videoItem;    
    RecordControl recordControl;    
    String contentType;    
    ByteArrayOutputStream outputStream;
    public VideoCam() {    
        display = Display.getDisplay(this);    
        form.addCommand(exit);    
        form.addCommand(start);    
        form.setCommandListener(this);    
        List list = new List("Тип записи", List.EXCLUSIVE);    
        list.append("video", null);    
        list.append("audio", null);    
        list.addCommand(new Command("Выбрать", Command.ITEM, 1));   
        list.setCommandListener(new CommandListener() {    
            public void commandAction(Command c, Displayable d) {    
                List list = (List) d;    
                switch (list.getSelectedIndex()) {    
                case 0:    
                    url = "capture://video";    
                    break;    
                case 1:    
                    url = "capture://audio";    
                    break;    
                default:    
                    url = "capture://video";    
                break;    
                }    
                form.append(url + "\n");    
                display.setCurrent(form);    
            }
        });
        display.setCurrent(list);    
    }

    public void commandAction(Command c, Displayable d) {    
        if (c == exit) {    
            notifyDestroyed();    
        }
        if (c == start) {    
            new Thread() {    
                public void run() {    
                    try {    
                        form.removeCommand(start);    
                        form.addCommand(stop);    
                        player = Manager.createPlayer(url);    
                        player.realize();    
                        contentType = player.getContentType();    
                        form.append(contentType + "\n");    
                        videoControl = (VideoControl) player.getControl("VideoControl");
                        if (videoControl != null) {    
                            videoItem = (Item)     
videoControl.initDisplayMode(VideoControl.USE_GUI_PRIMITIVE, null);    
                            form.append(videoItem);    
                        } else {    
                            form.append("No VideoControl" + "\n");    
                        }    
                        recordControl = (RecordControl)     player.getControl("RecordControl");    
                        if (recordControl != null) {
                            outputStream = new ByteArrayOutputStream();    
                            recordControl.setRecordStream(outputStream);    
                            recordControl.startRecord();    
                            form.append("Recording..." + "\n");    
                        } else {    
                            form.append("No RecordControl" + "\n");    
                        }
                        player.start();
                    } catch (Exception e) {    
                        e.printStackTrace();    
                        form.append(e.toString() + "\n");    
                    }    
                }
            }.start();    
        }
        if (c == stop) {    
            new Thread() {    
                public void run() {    
                    try {    
                        form.removeCommand(stop);    
                        player.stop();    
                        if (recordControl != null) {    
                            recordControl.stopRecord();    
                            recordControl.commit();    
                            form.append("Stopped" + "\n");    
                        }
                        if (videoItem != null) {    
                            for (int i = 0; i < form.size(); i++) {    
                                Item item = form.get(i);    
                                if (item == videoItem) {    
                                    form.delete(i);    
                                }    
                            }    
                        }
                        if (outputStream != null) {    
                            InputStream inputStream = new ByteArrayInputStream(outputStream.toByteArray());    
                            player = Manager.createPlayer(inputStream, contentType);    
                            player.realize();    
                            videoControl = (VideoControl) 
player.getControl("VideoControl");
                            if (videoControl != null) {
                                videoItem = (Item) videoControl.initDisplayMode(VideoControl.USE_GUI_PRIMITIVE, null);    
                                form.append(videoItem);    
                            }
                            player.start();
                        }
                    } catch (Exception e) {    
                        e.printStackTrace();    
                        form.append(e.toString() + "\n");    
                    }    
                }    
            }.start();    
        }   
    } }

Тело манифеста

Manifest-Version: 1.0
Ant-Version: Apache Ant 1.7.1
Created-By: 24.0-b56 (Oracle Corporation)
MIDlet-2: Midlet, , Hello.Midlet
MIDlet-1: HelloMIDlet, , hello.HelloMIDlet
MIDlet-Vendor: Vendor
MIDlet-Name: MobileApplication1
MIDlet-Version: 1.0
MicroEdition-Configuration: CLDC-1.1
MicroEdition-Profile: MIDP-2.0