How to make Splash Screen

Question

Hello,
Attempting to create a splash screen. However, i'm having some difficulty. the screen seems to hang albeit there's some functionality in the code that requests the screen disposes itself. Also, the image for the screen is flickering albeit the Update() method has been overriden to call the overriden paint method. the splash screen is comprised of two classes: SplashWindow and Splash. the Splash class is invoked from the Main method of the application.
Unfortunately, the SplashScreen object can't be used since the target device requires jre 1.4.2 and below.
Here's the code from the two classes:
import java.awt.Frame;
import java.awt.Toolkit;
import java.net.URL;
public class Splash {
     public static void main(String[] args) {
          Frame splashFrame = null;
          URL imageURL = Splash.class.getResource("img.png");
          if (imageURL != null) {
               splashFrame = SplashWindow.splash(
                         Toolkit.getDefaultToolkit().createImage(imageURL) );
          } else {
               System.err.println("Splash image not found");
          try { // Change the class name to match your entry class
               Class.forName("MainApp").getMethod("main", new Class[]
                         {String[].class}).invoke(null, new Object[] {args});
          } catch (Throwable e) {
               e.printStackTrace();
               System.err.flush();
               System.exit(10);
          if (splashFrame != null) {
               splashFrame.dispose();
/*END OF CLASS*/
import java.awt.Dimension;
import java.awt.EventQueue;
import java.awt.Frame;
import java.awt.Graphics;
import java.awt.Image;
import java.awt.MediaTracker;
import java.awt.Toolkit;
import java.awt.Window;
public class SplashWindow extends Window {
     private static final long serialVersionUID = 1L;
     private Image splashImage;
     private boolean paintCalled = false;
     public SplashWindow(Frame owner, Image splashImage) {
          super(owner);
          this.splashImage = splashImage;
          MediaTracker mt = new MediaTracker(this);
          mt.addImage(splashImage,0);
          try {
               mt.waitForID(0);
          } catch(InterruptedException ie) {}
          int imgWidth = splashImage.getWidth(this);
          int imgHeight = splashImage.getHeight(this); 
          setSize(imgWidth, imgHeight);
          Dimension screenDim = Toolkit.getDefaultToolkit().getScreenSize();
          setLocation( (screenDim.width - imgWidth) / 2,
                    (screenDim.height - imgHeight) / 2 );
     @Override
     public void update(Graphics g) {
          g.setColor(getForeground());
          paint(g);
     @Override
     public void paint(Graphics g) {
          g.drawImage(splashImage, 0, 0, this);
          if (! paintCalled) {
               paintCalled = true;
               synchronized (this) { notifyAll(); }
     @SuppressWarnings("deprecation")
     public static Frame splash(Image splashImage) {
          Frame f = new Frame();
          SplashWindow w = new SplashWindow(f, splashImage);
          w.toFront();
          w.show();
          if (! EventQueue.isDispatchThread()) {
               synchronized (w) {
                    while (! w.paintCalled) {
                         try {
                              w.wait();
                         } catch (InterruptedException e) {}
          }  end of class
// in the Main method of the application, the Splash object is instantiated and it's main method invoked
Splash oSplash = new Splash();
oSplash.main(args);any help is appreciated.

Answer 1

i was able to find the solution to the problem. it appears that there are couple calls in the code to synchronize the thread the splash screen is running on. these multiple calls was causing the flicker. so, i removed the "synchronized" call in the paint method.
the infinite loop was being caused by "forName" call for the class, so it was removed as well.