Why setRolloverIcon cant function in JToolBar ** NEED HELP ** URGENT

Question

this is the sample coding
* WHY when the user positions the mouse over
button...the Images dint change
import javax.swing.JToolBar;
import javax.swing.JButton;
import javax.swing.ImageIcon;
import javax.swing.JFrame;
import javax.swing.JTextArea;
import javax.swing.JScrollPane;
import javax.swing.JPanel;
import java.awt.*;
import java.awt.event.*;
public class ToolBarDemo extends JFrame {
protected JTextArea textArea;
protected String newline = "\n";
public ToolBarDemo() {
//Do frame stuff.
super("ToolBarDemo");
addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) {
System.exit(0);
//Create the toolbar.
JToolBar toolBar = new JToolBar();
addButtons(toolBar);
//Create the text area used for output.
textArea = new JTextArea(5, 30);
JScrollPane scrollPane = new JScrollPane(textArea);
//Lay out the content pane.
JPanel contentPane = new JPanel();
contentPane.setLayout(new BorderLayout());
contentPane.setPreferredSize(new Dimension(400, 100));
contentPane.add(toolBar, BorderLayout.NORTH);
contentPane.add(scrollPane, BorderLayout.CENTER);
setContentPane(contentPane);
protected void addButtons(JToolBar toolBar) {
JButton button = null;
//first button
button = new JButton(new ImageIcon("images/save2.gif"));
button.setRolloverIcon (new ImageIcon("images/save2.gif"));
button.setToolTipText("This is the left button");
button.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
displayResult("Action for first button");
toolBar.add(button);
//second button
button = new JButton(new ImageIcon("images/view2.gif"));
button.setRolloverIcon (new ImageIcon("images/view2.gif"));
button.setToolTipText("This is the middle button");
button.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
displayResult("Action for second button");
toolBar.add(button);
//third button
button = new JButton(new ImageIcon("images/delete2.gif"));
button.setRolloverIcon (new ImageIcon("images/delete2.gif"));
button.setToolTipText("This is the right button");
button.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
displayResult("Action for third button");
toolBar.add(button);
protected void displayResult(String actionDescription) {
textArea.append(actionDescription + newline);
public static void main(String[] args) {
ToolBarDemo frame = new ToolBarDemo();
frame.pack();
frame.setVisible(true);
}

Answer 1

This is a known Bug (# 4260485).
As showed there, setRolloverIcon works fine in Metal
JPanels, but not in Metal JToolBars.
(So, you should try with Windows or Motif look and feel).
import javax.swing.*;
import javax.swing.event.*;
import java.awt.*;
import java.awt.event.*;
public class ToolbarTest extends JPanel implements ActionListener
static final String iconDefName=".gif";
static final String iconRollName="images/middle.gif";
private static Icon getIcon(String name)
return (Icon)((UIDefaults.LazyValue)LookAndFeel.makeIcon(
ToolbarTest.class, name)).createValue(null);
JButton button;
JComboBox lnf;
ToolbarTest()
setLayout(new BorderLayout());
Icon iconRoll = getIcon(iconRollName);
Icon iconDef = getIcon(iconDefName);
JToolBar toolbar = new JToolBar();
button = new JButton(iconDef);
button.setRequestFocusEnabled(false);
button.setMargin(new Insets(1,1,1,1));
button.setPressedIcon(iconRoll);
button.setRolloverIcon(iconRoll);
button.setRolloverEnabled(true);
toolbar.add(button);
add(toolbar, BorderLayout.NORTH);
JButton button2 = new JButton(iconDef);
button2.setRequestFocusEnabled(false);
button2.setMargin(new Insets(1,1,1,1));
button2.setPressedIcon(iconRoll);
button2.setRolloverIcon(iconRoll);
button2.setRolloverEnabled(true);
add(button2, BorderLayout.WEST);
UIManager.LookAndFeelInfo[] lnfs =
UIManager.getInstalledLookAndFeels();
String lnfClasses[] = new String[lnfs.length];
for (int i = 0; i < lnfs.length; i++)
lnfClasses[i] = lnfs.getClassName();
lnf = new JComboBox(lnfClasses);
lnf.setSelectedItem(UIManager.getSystemLookAndFeelClassName());
lnf.addActionListener(this);
add(lnf, BorderLayout.SOUTH);
public void actionPerformed(ActionEvent e)
String selectedlnf = (String)lnf.getSelectedItem();
try {
UIManager.setLookAndFeel(selectedlnf);
SwingUtilities.updateComponentTreeUI(this);
System.out.println(button);
} catch (Exception ee) {}
public static void main(String args[])
JFrame frame = new JFrame("Rollover property of button in toolbar");
     frame.addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) {
System.exit(0);
     JOptionPane.setRootFrame(frame);
     try {
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
} catch (Exception e) {}
frame.getContentPane().add(new ToolbarTest());
frame.pack();
frame.setSize(new Dimension(300,150));
frame.show();