Look And Feel Problem

[Jeff SmithX]

Hi,
I'm experimenting with a custom look and feel for the first time and I'm having some problems I have no idea how to fix. I've downloaded the Kunststoff Look&Feel (www.incors.org) and I've written a really simple program that is just supposed to display a message box, with the custom look and feel. However, when I run the program I get the following error:

 
UIDefaults.getUI() failed: no ComponentUI class for: javax.swing.JButton[,0,0,0x0,invalid,layout=javax.swing.OverlayLayout,
alignmentX=null,alignmentY=null,border=,flags=0,maximumSize=,minimumSize=,preferredSize=,defaultIcon=,disabledIcon=,
disabledSelectedIcon=,margin=null,paintBorder=true,paintFocus=true,pressedIcon=,rolloverEnabled=false,rolloverIcon=,
rolloverSelectedIcon=,selectedIcon=,text=OK,defaultCapable=true]
java.lang.Error
at javax.swing.UIDefaults.getUIError(Unknown Source)
at javax.swing.UIDefaults.getUI(Unknown Source)
at javax.swing.UIManager.getUI(Unknown Source)
at javax.swing.JButton.updateUI(Unknown Source)
at javax.swing.AbstractButton.init(Unknown Source)
at javax.swing.JButton.<init>(Unknown Source)
at javax.swing.JButton.<init>(Unknown Source)
at javax.swing.plaf.basic.BasicOptionPaneUI.addButtonComponents(Unknown Source)
at javax.swing.plaf.basic.BasicOptionPaneUI.createButtonArea(Unknown Source)
at javax.swing.plaf.basic.BasicOptionPaneUI.installComponents(Unknown Source)
at javax.swing.plaf.basic.BasicOptionPaneUI.installUI(Unknown Source)
at javax.swing.JComponent.setUI(Unknown Source)
at javax.swing.JOptionPane.setUI(Unknown Source)
at javax.swing.JOptionPane.updateUI(Unknown Source)
at javax.swing.JOptionPane.<init>(Unknown Source)
at javax.swing.JOptionPane.showOptionDialog(Unknown Source)
at javax.swing.JOptionPane.showMessageDialog(Unknown Source)
at javax.swing.JOptionPane.showMessageDialog(Unknown Source)
at LNFTest.main(LNFTest.java:15)
UIDefaults.getUI() failed: no ComponentUI class for: javax.swing.JButton[,0,0,0x0,invalid,layout=javax.swing.OverlayLayout,
alignmentX=null,alignmentY=null,border=,flags=0,maximumSize=,minimumSize=,preferredSize=,defaultIcon=,disabledIcon=,
disabledSelectedIcon=,margin=null,paintBorder=true,paintFocus=true,pressedIcon=,rolloverEnabled=false,rolloverIcon=,
rolloverSelectedIcon=,selectedIcon=,text=OK,defaultCapable=true]
java.lang.Error
at javax.swing.UIDefaults.getUIError(Unknown Source)
at javax.swing.UIDefaults.getUI(Unknown Source)
at javax.swing.UIManager.getUI(Unknown Source)
at javax.swing.JButton.updateUI(Unknown Source)
at javax.swing.AbstractButton.init(Unknown Source)
at javax.swing.JButton.<init>(Unknown Source)
at javax.swing.JButton.<init>(Unknown Source)
at javax.swing.plaf.basic.BasicOptionPaneUI.addButtonComponents(Unknown Source)
at javax.swing.plaf.basic.BasicOptionPaneUI.createButtonArea(Unknown Source)
at javax.swing.plaf.basic.BasicOptionPaneUI.installComponents(Unknown Source)
at javax.swing.plaf.basic.BasicOptionPaneUI$PropertyChangeHandler.propertyChange(Unknown Source)
at javax.swing.event.SwingPropertyChangeSupport.firePropertyChange(Unknown Source)
at javax.swing.event.SwingPropertyChangeSupport.firePropertyChange(Unknown Source)
at javax.swing.JComponent.firePropertyChange(Unknown Source)
at javax.swing.JOptionPane.setInitialValue(Unknown Source)
at javax.swing.JOptionPane.showOptionDialog(Unknown Source)
at javax.swing.JOptionPane.showMessageDialog(Unknown Source)
at javax.swing.JOptionPane.showMessageDialog(Unknown Source)
at LNFTest.main(LNFTest.java:15)
 

Here's my program:

 
import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
public class LNFTest {
    public static void main ( String args[] ) {
        try {
            UIManager.setLookAndFeel( new com.incors.plaf.kunststoff.KunststoffLookAndFeel() );
        } catch ( UnsupportedLookAndFeelException x ) {
        
        }
        
        JOptionPane.showMessageDialog(
            null,
            "My Message",
            "Title",
            JOptionPane.ERROR_MESSAGE );
    
    }
}
 

Can anyone please tell me how to fix this problem, I don't understand what's happening here. And since this look and feel was created by someone else, and I've seen it used in other programs, I would think it should work ok.
Thanks,
Jeff
[ October 04, 2003: Message edited by: Jeff Smith ]
[ October 04, 2003: Message edited by: Jeff Smith ]

[Joe Ess]

Just a stab in the dark. When you run your program, are you including kunststoff.jar in the classpath?
[ October 06, 2003: Message edited by: Joe Ess ]