Splash screen me deixa triste

public void showSplashScreen(Display d, Displayable next){
   Image logo = null;
   try {
      // res é a pasta padrão de imagens em um projeto de um MIDlet seguido do nome da imagem
      logo = Image.createImage("/res/logo.jpg");
    }
    catch( IOException e ){}
    
    Alert a = new Alert("Time Tracker", "Texto.", logo, null); 
    a.setTimeout(Alert.FOREVER);
    display.setCurrent(a, next);
}

public class ExMIDlet extends MIDlet implements CommandListener {

   private Display display;
   private Command exitCommand = new Command("Exit", Command.EXIT, 1 );

   //construtor
   public ExMIDlet(){}

   protected void destroyApp(boolean unconditional) throws MIDletStateChangeException {
        exitMIDlet();
   }

   protected void pauseApp(){}

   protected void startApp() throws MIDletStateChangeException {
      if(display == null){
           initMIDlet();
      }
   }

   private void initMIDlet(){
       display = Display.getDisplay( this );
       new SplashScreen(display, new TrivialForm() );
   }

   public void exitMIDlet(){
       notifyDestroyed();
   }

    public void commandAction(Command c, Displayable d ){
        exitMIDlet();
    }

    // uma tela (form) trivial p/ a splsh screen
    class TrivialForm extends Form {
        TrivialForm(){
            super("ExMIDlet");
            addCommand(exitCommand);
            setCommandListener(ExMIDlet.this);
        }
    }
}

public class ExMIDlet extends MIDlet implements CommandListener {

   //construtor
   public ExMIDlet(){}

   protected void destroyApp(boolean unconditional) throws MIDletStateChangeException {
        exitMIDlet();
   }

   protected void pauseApp(){}

   protected void startApp(){
      Displayable current = Display.getDisplay(this).getCurrent();
      if (current == null){
         //current = vazio, aplicacao iniciando hora de exibir a splash scrren
         SplashScreen splashScreen = new SplashScreen(this, mainMenu);
         Display.getDisplay(this).setCurrent(splashScreen);
         splashScreen.start();
      }

      void start(){
         if (timer != null)
            timer.cancel();
      }

      timer = new Timer();
      TimerTask dismissTask = new TimerTask(){
         public void run(){
            if (timer != null)
               // Cancela o timer (timer.cancel()) e exibe a prox tela de acordo c/ o Construtor
               dismiss();
         }
      };
      // termina com o splash depois de 4 segs
      timer.schedule(dismissTask, 4000L);

import java.io.IOException;
import java.util.*;
import javax.microedition.lcdui.*;
 
public class SplashScreen extends Canvas {
   private Display display;
   private Displayable next;
   private Image resim = null; // imagem a ser exibida
   private Timer timer = new Timer();
 
   public SplashScreen(Display display, Displayable next){
      this.display = display;
      this.next = next;
      display.setCurrent(this);
   }
 
   protected void keyPressed( int keyCode ){
      dismiss();
   }
 
   protected void paint( Graphics g ){
      try {
         g.setColor(255,255,255);
         g.drawRect(0,0,getWidth(),getHeight());
         resim = Image.createImage("/res/logo.png");
         g.drawImage (resim, getWidth () / 2, getHeight () / 2, Graphics.HCENTER | Graphics.VCENTER);
      } 
      catch (IOException ex) {
         System.out.println("logo não localizado!"+ex.toString());
      }
   }
 
   protected void pointerPressed(int x, int y){
      dismiss();
   }
    
   // tempo do splash: 5 segs
   protected void showNotify(){
      timer.schedule(new CountDown(), 5000);
   }
    
   // cancela splash ao pressionar qualquer butão após os 5 segs
   private void dismiss(){
      timer.cancel();        
      display.setCurrent(next);        
   }
    
   private class CountDown extends TimerTask {
      public void run(){
         dismiss();
      }
   }
}

private void initMIDlet(){
   Display screen = Display.getDisplay(this);
   new SplashScreen(screen ,menu);
}

Na thread 1
splash=true;
faz o processamento etc;
splash=false;
----------------------------
Na thread 2 - do Splash
exibe imagem
while (thread1.splash)
   sleep;
finaliza thread2