Add Drop Shadow to JMenu Problem

Hi,
I got this code from "Swing Hacks", for some reason it does not run for me, but throws exceptions. I can not figure out why this is happening. This code straight out of the book, should be runnable. Below is the custom class, then the driver-test class, then the Exception:
import javax.swing.plaf.basic.*;
import javax.swing.plaf.*;
import javax.swing.border.*;
import javax.swing.*;
import java.awt.*;
public class CustomPopupMenuUI extends BasicPopupMenuUI{
     public static ComponentUI createUI(JComponent c){
          return new CustomPopupMenuUI();
     public Popup getPopup(JPopupMenu popup, int x,
               int y){
          Popup pp = super.getPopup(popup, x,y);
          JPanel panel = (JPanel)popup.getParent();
          panel.setBorder(new ShadowBorder(3,3));
          panel.setOpaque(false);
          return pp;
class ShadowBorder extends AbstractBorder{
     int xoff,yoff;
     Insets insets;
     public ShadowBorder(int x, int y){
          this.xoff = x;
          this.yoff = y;
          insets = new Insets(0,0,xoff,yoff);
     public Insets getBorderInsets(Component c){
          return insets;
     public void paintBorder(Component comp, Graphics g,
               int x, int y, int width, int height){
          g.setColor(Color.BLACK);
          g.translate(x,y);
          // draw right side
          g.fillRect(width-xoff,yoff,xoff,height-yoff);
          // draw bottom side
          g.fillRect(xoff,height-yoff,width-xoff,yoff);
          g.translate(-x,-y);
// Driver Below
import javax.swing.*;
import javax.swing.plaf.ComponentUI;
import java.awt.*;
public class MenuTest {
     public static void main(String[] args)throws Exception{
          UIManager.put("PopupMenuUI","CustomPopupMenuUI");
          //UIManager.put("MenuItemUI","LucentMenuItemUI");
          JFrame frame = new JFrame();
          JMenuBar mb = new JMenuBar();
          //mb.setUI(new CustomMenuUI());
          frame.setJMenuBar(mb);
          JMenu menu = new JMenu("File");
          mb.add(menu);
          menu.add(new JMenuItem("Open"));
          menu.add(new JMenuItem("Save"));
          menu.add(new JMenuItem("Close"));
          menu.add(new JMenuItem("Exit"));
          menu = new JMenu("Edit");
          mb.add(menu);
          menu.add(new JMenuItem("Cut"));
          menu.add(new JMenuItem("Copy"));
          menu.add(new JMenuItem("Paste"));
          menu.add(new JMenuItem("Paste Special.."));
          frame.getContentPane().setLayout(new BorderLayout());
          frame.getContentPane().add("North",new JButton("Button"));
          frame.getContentPane().add("Center",new JLabel("Label"));
          frame.getContentPane().add("South",new JCheckBox("checkbox"));
          frame.pack();
          frame.setSize(200,150);
          frame.show();
}Exception:
UIDefaults.getUI() failed: no ComponentUI class for: javax.swing.JPopupMenu[,0,0,0x0,invalid,alignmentX=0.0,alignmentY=0.0,border=,flags=0,maximumSize=,minimumSize=,preferredSize=,desiredLocationX=0,desiredLocationY=0,label=,lightWeightPopupEnabled=true,margin=,paintBorder=true]
java.lang.Error
     at javax.swing.UIDefaults.getUIError(Unknown Source)
     at javax.swing.MultiUIDefaults.getUIError(Unknown Source)
     at javax.swing.UIDefaults.getUI(Unknown Source)
     at javax.swing.UIManager.getUI(Unknown Source)
     at javax.swing.JPopupMenu.updateUI(Unknown Source)
     at javax.swing.JPopupMenu.<init>(Unknown Source)
     at javax.swing.JPopupMenu.<init>(Unknown Source)
     at javax.swing.JMenu.ensurePopupMenuCreated(Unknown Source)
     at javax.swing.JMenu.add(Unknown Source)
     at hacks.MenuTest.main(MenuTest.java:23)
advTHANKSance

I am also using xp and java version 1.4.2_08, but to no avail.. see below:
C:\workspace\Swing Hacks\src>java -version
java version "1.4.2_08"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.2_08-b03)
Java HotSpot(TM) Client VM (build 1.4.2_08-b03, mixed mode)
C:\workspace\Swing Hacks\src>java hacks.MenuTest
UIDefaults.getUI() failed: no ComponentUI class for: javax.swing.JPopupMenu[,0,0
,0x0,invalid,alignmentX=null,alignmentY=null,border=,flags=0,maximumSize=,minimu
mSize=,preferredSize=,desiredLocationX=0,desiredLocationY=0,label=,lightWeightPo
pupEnabled=true,margin=,paintBorder=true]
java.lang.Error
at javax.swing.UIDefaults.getUIError(UIDefaults.java:689)
at javax.swing.UIDefaults.getUI(UIDefaults.java:719)
at javax.swing.UIManager.getUI(UIManager.java:784)
at javax.swing.JPopupMenu.updateUI(JPopupMenu.java:204)
at javax.swing.JPopupMenu.<init>(JPopupMenu.java:169)
at javax.swing.JPopupMenu.<init>(JPopupMenu.java:154)
at javax.swing.JMenu.ensurePopupMenuCreated(JMenu.java:521)
at javax.swing.JMenu.add(JMenu.java:556)
at hacks.MenuTest.main(MenuTest.java:23)
UIDefaults.getUI() failed: no ComponentUI class for: javax.swing.JPopupMenu[,0,0
,0x0,invalid,alignmentX=null,alignmentY=null,border=,flags=0,maximumSize=,minimu
mSize=,preferredSize=,desiredLocationX=0,desiredLocationY=0,label=,lightWeightPo
pupEnabled=true,margin=,paintBorder=true]
java.lang.Error
at javax.swing.UIDefaults.getUIError(UIDefaults.java:689)
at javax.swing.UIDefaults.getUI(UIDefaults.java:719)
at javax.swing.UIManager.getUI(UIManager.java:784)
at javax.swing.JPopupMenu.updateUI(JPopupMenu.java:204)
at javax.swing.JPopupMenu.<init>(JPopupMenu.java:169)
at javax.swing.JPopupMenu.<init>(JPopupMenu.java:154)
at javax.swing.JMenu.ensurePopupMenuCreated(JMenu.java:521)
at javax.swing.JMenu.add(JMenu.java:556)
at hacks.MenuTest.main(MenuTest.java:30)
I don't understand what the issue could be..
Can anyone reproduce this error??

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