ADDITIONAL SYSTEM INFORMATION :
Windows 11 Home

java version "21" 2023-09-19 LTS
Java(TM) SE Runtime Environment (build 21+35-LTS-2513)
Java HotSpot(TM) 64-Bit Server VM (build 21+35-LTS-2513, mixed mode, sharing)

A DESCRIPTION OF THE PROBLEM :
1. Creating a JFileChooser throws a NullPointerException in Java 21
ONLY when using the System Look and Feel.

2. Works with the Cross Platform Look and Feel

3. Switching to Java 20 and running the same code works with the System Look and Feel

REGRESSION : Last worked in version 20

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
1. The Swing JFrame window should show

2. Shows when run with Java 20
ACTUAL -
The JFrame window doesn't show and program terminates with the following trace


Java version : 21
Exception in thread "main" java.lang.NullPointerException: Cannot invoke "java.awt.Image.getWidth(java.awt.image.ImageObserver)" because "retVal" is null
        at java.desktop/sun.awt.shell.Win32ShellFolder2$MultiResolutionIconImage.getResolutionVariant(Win32ShellFolder2.java:1459)
        at java.desktop/sun.awt.shell.Win32ShellFolder2$MultiResolutionIconImage.getBaseImage(Win32ShellFolder2.java:1438)
        at java.desktop/java.awt.image.AbstractMultiResolutionImage.getProperty(AbstractMultiResolutionImage.java:140)
        at java.desktop/javax.swing.ImageIcon.<init>(ImageIcon.java:255)
        at java.desktop/javax.swing.ImageIcon.<init>(ImageIcon.java:241)
        at java.desktop/javax.swing.filechooser.FileSystemView.getSystemIcon(FileSystemView.java:252)
        at java.desktop/com.sun.java.swing.plaf.windows.WindowsFileChooserUI$WindowsFileView.getIcon(WindowsFileChooserUI.java:1352)
        at java.desktop/javax.swing.JFileChooser.getIcon(JFileChooser.java:1613)
        at java.desktop/com.sun.java.swing.plaf.windows.WindowsFileChooserUI$DirectoryComboBoxRenderer.getListCellRendererComponent(WindowsFileChooserUI.java:1047)
        at java.desktop/javax.swing.plaf.basic.BasicListUI.updateLayoutState(BasicListUI.java:1444)
        at java.desktop/javax.swing.plaf.basic.BasicListUI.maybeUpdateLayoutState(BasicListUI.java:1394)
        at java.desktop/javax.swing.plaf.basic.BasicListUI$Handler.valueChanged(BasicListUI.java:2815)
        at java.desktop/javax.swing.DefaultListSelectionModel.fireValueChanged(DefaultListSelectionModel.java:231)
        at java.desktop/javax.swing.DefaultListSelectionModel.fireValueChanged(DefaultListSelectionModel.java:206)
        at java.desktop/javax.swing.DefaultListSelectionModel.fireValueChanged(DefaultListSelectionModel.java:258)
        at java.desktop/javax.swing.DefaultListSelectionModel.changeSelection(DefaultListSelectionModel.java:459)
        at java.desktop/javax.swing.DefaultListSelectionModel.changeSelection(DefaultListSelectionModel.java:469)
        at java.desktop/javax.swing.DefaultListSelectionModel.setSelectionInterval(DefaultListSelectionModel.java:513)
        at java.desktop/javax.swing.JList.setSelectedIndex(JList.java:2232)
        at java.desktop/javax.swing.plaf.basic.BasicComboPopup.setListSelection(BasicComboPopup.java:1281)
        at java.desktop/javax.swing.plaf.basic.BasicComboPopup$Handler.itemStateChanged(BasicComboPopup.java:1097)
        at java.desktop/javax.swing.JComboBox.fireItemStateChanged(JComboBox.java:1257)
        at java.desktop/javax.swing.JComboBox.selectedItemChanged(JComboBox.java:1318)
        at java.desktop/javax.swing.JComboBox.contentsChanged(JComboBox.java:1365)
        at java.desktop/javax.swing.AbstractListModel.fireContentsChanged(AbstractListModel.java:127)
        at java.desktop/com.sun.java.swing.plaf.windows.WindowsFileChooserUI$DirectoryComboBoxModel.setSelectedItem(WindowsFileChooserUI.java:1190)
        at java.desktop/com.sun.java.swing.plaf.windows.WindowsFileChooserUI$DirectoryComboBoxModel.addItem(WindowsFileChooserUI.java:1161)
        at java.desktop/com.sun.java.swing.plaf.windows.WindowsFileChooserUI.doDirectoryChanged(WindowsFileChooserUI.java:777)
        at java.desktop/com.sun.java.swing.plaf.windows.WindowsFileChooserUI$11.propertyChange(WindowsFileChooserUI.java:868)
        at java.desktop/java.beans.PropertyChangeSupport.fire(PropertyChangeSupport.java:343)
        at java.desktop/java.beans.PropertyChangeSupport.firePropertyChange(PropertyChangeSupport.java:335)
        at java.desktop/java.beans.PropertyChangeSupport.firePropertyChange(PropertyChangeSupport.java:268)
        at java.desktop/java.awt.Component.firePropertyChange(Component.java:8717)
        at java.desktop/javax.swing.JFileChooser.setCurrentDirectory(JFileChooser.java:610)
        at java.desktop/javax.swing.JFileChooser.<init>(JFileChooser.java:364)
        at java.desktop/javax.swing.JFileChooser.<init>(JFileChooser.java:310)
        at TestSwing.main(TestSwing.java:35)

---------- BEGIN SOURCE ----------
public class TestSwing {

    static JFileChooser fc = null;

    public static void main(String[] args) throws Exception {

        System.out.println("Java version : " + System.getProperty("java.version"));

        // Code works with cross platform look and feel
        UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());

        JFrame frame = new JFrame();
        frame.setSize(new Dimension(400, 400));
        JPanel panel = new JPanel();
        JButton btn = new JButton("Show");
        
        fc = new JFileChooser();

        btn.addActionListener(e -> {
            fc.showOpenDialog(frame);
        });

        panel.add(btn);
        frame.add(panel);
        frame.setVisible(true);
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    }

}
---------- END SOURCE ----------

CUSTOMER SUBMITTED WORKAROUND :
Not aware of a workaround

FREQUENCY : always