JFileChooser not opening when we applied custom Look and Feel & Theme

Question

Dear All,
JFileChooser not opening when we applied custom Look and Feel & Theme.
The following is the source code
import java.awt.Color;
import javax.swing.*;
import javax.swing.plaf.ColorUIResource;
import javax.swing.plaf.metal.MetalLookAndFeel;
import com.jgoodies.looks.plastic.*;
public class CustomTheme {
public static void main(String[] args)throws UnsupportedLookAndFeelException{
UIManager.setLookAndFeel(new MyLookAndFeel());
MyLookAndFeel.setCurrentTheme(new CustomLaF());
JFrame frame = new JFrame("Metal Theme");
JFileChooser jf = new JFileChooser();
System.out.println("UI - > "+jf.getUI());
//jf.updateUI();
frame.getContentPane().add(jf);
frame.pack();
frame.setVisible(true);
static class CustomLaF extends PlasticTheme {
protected ColorUIResource getPrimary1() {
return new ColorUIResource(232,132,11);
public ColorUIResource getPrimary2() {
          return (new ColorUIResource(Color.white));
     public ColorUIResource getPrimary3() {
          return (new ColorUIResource(232,132,11));
public ColorUIResource getPrimaryControl() {
return new ColorUIResource(Color.GREEN);
protected ColorUIResource getSecondary1() {
return new ColorUIResource(Color.CYAN);
protected ColorUIResource getSecondary2() {
          return (new ColorUIResource(Color.gray));
     protected ColorUIResource getSecondary3() {
          return (new ColorUIResource(235,235,235));
     protected ColorUIResource getBlack() {
          return BLACK;
     protected ColorUIResource getWhite() {
          return WHITE;
static class MyLookAndFeel extends Plastic3DLookAndFeel {
          protected void initClassDefaults(UIDefaults table) {
               super.initClassDefaults(table);
          protected void initComponentDefaults(UIDefaults table) {
               super.initComponentDefaults(table);
               Object[] defaults = {
                         "MenuItem.foreground",new ColorUIResource(Color.white),
                         "MenuItem.background",new ColorUIResource(Color.gray),
                         "MenuItem.selectionForeground",new ColorUIResource(Color.gray),
                         "MenuItem.selectionBackground",new ColorUIResource(Color.white),
                         "Menu.selectionForeground", new ColorUIResource(Color.white),
                         "Menu.selectionBackground", new ColorUIResource(Color.gray),
                         "MenuBar.background", new ColorUIResource(235,235,235),
                         "Menu.background", new ColorUIResource(235,235,235),
                         "Desktop.background",new ColorUIResource(235,235,235),
                         "Button.select",new ColorUIResource(232,132,11),
                         "Button.focus",new ColorUIResource(232,132,11),
                         "TableHeader.background", new ColorUIResource(232,132,11),
                         "TableHeader.foreground", new ColorUIResource(Color.white),
                         "ScrollBar.background", new ColorUIResource(235,235,235),
                         "ToolTip.foreground", new ColorUIResource(232,132,11),
                         "ToolTip.background", new ColorUIResource(Color.white),
                         "OptionPane.questionDialog.border.background", new ColorUIResource(Color.gray),
                         "OptionPane.errorDialog.titlePane.foreground", new ColorUIResource(Color.white),
                         "OptionPane.questionDialog.titlePane.background", new ColorUIResource(232,132,11),
                         "Table.selectionBackground", new ColorUIResource(232,132,11)
               table.putDefaults(defaults);
When i run this program the following error is coming:
Exception in thread "main" java.lang.NullPointerException
at javax.swing.plaf.metal.MetalFileChooserUI$IndentIcon.getIconWidth(Unknown Source)
at javax.swing.SwingUtilities.layoutCompoundLabelImpl(Unknown Source)
at javax.swing.SwingUtilities.layoutCompoundLabel(Unknown Source)
at javax.swing.plaf.basic.BasicLabelUI.layoutCL(Unknown Source)
at javax.swing.plaf.basic.BasicLabelUI.getPreferredSize(Unknown Source)
at javax.swing.JComponent.getPreferredSize(Unknown Source)
at javax.swing.plaf.basic.BasicListUI.updateLayoutState(Unknown Source)
at javax.swing.plaf.basic.BasicListUI.maybeUpdateLayoutState(Unknown Source)
at javax.swing.plaf.basic.BasicListUI$ListSelectionHandler.valueChanged(Unknown Source)
at javax.swing.DefaultListSelectionModel.fireValueChanged(Unknown Source)
at javax.swing.DefaultListSelectionModel.fireValueChanged(Unknown Source)
at javax.swing.DefaultListSelectionModel.fireValueChanged(Unknown Source)
at javax.swing.DefaultListSelectionModel.changeSelection(Unknown Source)
at javax.swing.DefaultListSelectionModel.changeSelection(Unknown Source)
at javax.swing.DefaultListSelectionModel.setSelectionInterval(Unknown Source)
at javax.swing.JList.setSelectedIndex(Unknown Source)
at javax.swing.plaf.basic.BasicComboPopup.setListSelection(Unknown Source)
at javax.swing.plaf.basic.BasicComboPopup.access$000(Unknown Source)
at javax.swing.plaf.basic.BasicComboPopup$ItemHandler.itemStateChanged(Unknown Source)
at javax.swing.JComboBox.fireItemStateChanged(Unknown Source)
at javax.swing.JComboBox.selectedItemChanged(Unknown Source)
at javax.swing.JComboBox.contentsChanged(Unknown Source)
at javax.swing.AbstractListModel.fireContentsChanged(Unknown Source)
at javax.swing.plaf.metal.MetalFileChooserUI$DirectoryComboBoxModel.setSelectedItem(Unknow
at javax.swing.plaf.metal.MetalFileChooserUI$DirectoryComboBoxModel.addItem(Unknown Source
at javax.swing.plaf.metal.MetalFileChooserUI$DirectoryComboBoxModel.access$2300(Unknown So
at javax.swing.plaf.metal.MetalFileChooserUI.doDirectoryChanged(Unknown Source)
at javax.swing.plaf.metal.MetalFileChooserUI.access$2600(Unknown Source)
at javax.swing.plaf.metal.MetalFileChooserUI$12.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.JFileChooser.setCurrentDirectory(Unknown Source)
at javax.swing.JFileChooser.<init>(Unknown Source)
at javax.swing.JFileChooser.<init>(Unknown Source)
at CustomTheme.main(CustomTheme.java:20)
I am extending the JGoodies Look And Feel & Theme.
Thanks in advance
Krishna Mohan.

Answer 1

Dear cupofjoe,
Thank you for your response.
I am using the Latest JGoodies Look & Feel which is downloaded from http://www.jgoodies.com.
i am writing our own custom Look & Feel By Overridding Jgoodies Look & Feel.
In that case i am getting that error.
The following is the source code:
import java.awt.Color;
import javax.swing.*;
import javax.swing.plaf.ColorUIResource;
import javax.swing.plaf.metal.MetalLookAndFeel;
import com.jgoodies.looks.plastic.*;
public class CustomTheme {
public static void main(String[] args)throws UnsupportedLookAndFeelException{
UIManager.setLookAndFeel(new MyLookAndFeel());
MyLookAndFeel.setCurrentTheme(new CustomLaF());
JFrame frame = new JFrame("Metal Theme");
JFileChooser jf = new JFileChooser();
//System.out.println("UI - > "+jf.getUI());
//jf.updateUI();
//frame.getContentPane().add(jf);
frame.pack();
frame.setVisible(true);
static class CustomLaF extends PlasticTheme {
protected ColorUIResource getPrimary1() {
return new ColorUIResource(232,132,11);
public ColorUIResource getPrimary2() {
          return (new ColorUIResource(Color.white));
     public ColorUIResource getPrimary3() {
          return (new ColorUIResource(232,132,11));
public ColorUIResource getPrimaryControl() {
return new ColorUIResource(Color.GREEN);
protected ColorUIResource getSecondary1() {
return new ColorUIResource(Color.CYAN);
protected ColorUIResource getSecondary2() {
          return (new ColorUIResource(Color.gray));
     protected ColorUIResource getSecondary3() {
          return (new ColorUIResource(235,235,235));
     protected ColorUIResource getBlack() {
          return BLACK;
     protected ColorUIResource getWhite() {
          return WHITE;
static class MyLookAndFeel extends Plastic3DLookAndFeel {
          protected void initClassDefaults(UIDefaults table) {
               super.initClassDefaults(table);
          protected void initComponentDefaults(UIDefaults table) {
               super.initComponentDefaults(table);
               Object[] defaults = {
                         "MenuItem.foreground",new ColorUIResource(Color.white),
                         "MenuItem.background",new ColorUIResource(Color.gray),
                         "MenuItem.selectionForeground",new ColorUIResource(Color.gray),
                         "MenuItem.selectionBackground",new ColorUIResource(Color.white),
                         "Menu.selectionForeground", new ColorUIResource(Color.white),
                         "Menu.selectionBackground", new ColorUIResource(Color.gray),
                         "MenuBar.background", new ColorUIResource(235,235,235),
                         "Menu.background", new ColorUIResource(235,235,235),
                         "Desktop.background",new ColorUIResource(235,235,235),
                         "Button.select",new ColorUIResource(232,132,11),
                         "Button.focus",new ColorUIResource(232,132,11),
                         "TableHeader.background", new ColorUIResource(232,132,11),
                         "TableHeader.foreground", new ColorUIResource(Color.white),
                         "ScrollBar.background", new ColorUIResource(235,235,235),
                         "ToolTip.foreground", new ColorUIResource(232,132,11),
                         "ToolTip.background", new ColorUIResource(Color.white),
                         "OptionPane.questionDialog.border.background", new ColorUIResource(Color.gray),
                         "OptionPane.errorDialog.titlePane.foreground", new ColorUIResource(Color.white),
                         "OptionPane.questionDialog.titlePane.background", new ColorUIResource(232,132,11),
                         "Table.selectionBackground", new ColorUIResource(232,132,11)
               table.putDefaults(defaults);
pls suggest me the how to solve this problem.
thanks in advance
Krishna MOhan