When I try to execute an Application with JDK 1.2.x on a system with screen resolution 640x480 and color depth 16 colors, class loader cannot load class
javax.swing.plaf.metal.MetalLookAndFeel. If the screen resolution is increased
to 800x600 and color depth to 256 colors everything works fine.

Test Application:
import javax.swing.*;

public class HelloWorld extends JFrame
{
  public HelloWorld()
  {
    super("Hello World");

JLabel label = new JLabel("Hello World message");
getContentPane().add(label);

pack();
  }
   
  public static void main(String[] args)
  {
    HelloWorld helloWorld = new HelloWorld();
helloWorld.show();
  }
}

Exception Thrown:
Exception in thread "main" java.lang.Error: can't load
javax.swing.plaf.metal.MetalLookAndFeel
at java.lang.Throwable.fillInStackTrace(Native Method)
at java.lang.Throwable.fillInStackTrace(Compiled Code)
at java.lang.Throwable.<init>(Compiled Code)
at java.lang.Error.<init>(Error.java:50)
at javax.swing.UIManager.initializeDefaultLAF(UIManager.java:826)
at javax.swing.UIManager.initialize(UIManager.java:896)
at javax.swing.UIManager.maybeInitialize(UIManager.java:913)
at javax.swing.UIManager.getUI(UIManager.java:535)
at javax.swing.JPanel.updateUI(JPanel.java:110)
at javax.swing.JPanel.<init>(JPanel.java:70)
at javax.swing.JPanel.<init>(JPanel.java:100)
at javax.swing.JRootPane.createGlassPane(JRootPane.java:225)
at javax.swing.JRootPane.<init>(JRootPane.java:181)
at javax.swing.JFrame.createRootPane(JFrame.java:154)
at javax.swing.JFrame.frameInit(JFrame.java:147)
at javax.swing.JFrame.<init>(JFrame.java:124)
at NotHelloWorldFrame.<init>(NotHelloWorld.java:18)
at NotHelloWorld.main(NotHelloWorld.java:34)