When I tried adding a JTabbedPane component to a JFrame, got ArrayIndexOutOfBoundsException

The code I used:
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

public class FrameDemo extends JFrame implements FocusListener {
    public FrameDemo() {
        setSize(300, 300);
        
        addWindowListener(new WindowAdapter() {
            public void windowClosing(WindowEvent e) {
                System.exit(0);
            }
        });
        
        //adding JTabbedPane
        JTabbedPane tabPane = new JTabbedPane();
        tabPane.addFocusListener(this);
        
        getContentPane().add(tabPane, BorderLayout.CENTER);
    }
    public static void main(String s[]) {
      FrameDemo fd = new FrameDemo();
      
      fd.pack();
      fd.setVisible(true);
    }
    
    public void focusGained(FocusEvent e) {
      System.out.println(e.getComponent());
    }
    
    public void focusLost(FocusEvent e) {
      System.out.println(e.getComponent());
    }
}

Exception in the console:
Exception occurred during event dispatching:
java.lang.ArrayIndexOutOfBoundsException
        at javax.swing.plaf.basic.BasicTabbedPaneUI.getTabBounds(BasicTabbedPaneUI.java:1178)
        at javax.swing.plaf.metal.MetalTabbedPaneUI.paintContentBorderTopEdge(MetalTabbedPaneUI.java:768)
        at javax.swing.plaf.basic.BasicTabbedPaneUI.paintContentBorder(BasicTabbedPaneUI.java:980)
        at javax.swing.plaf.basic.BasicTabbedPaneUI.paint(BasicTabbedPaneUI.java:477)
        at javax.swing.plaf.metal.MetalTabbedPaneUI.paint(MetalTabbedPaneUI.java:667)
        at javax.swing.plaf.metal.MetalTabbedPaneUI.update(MetalTabbedPaneUI.java:562)
        at javax.swing.JComponent.paintComponent(JComponent.java:430)
        at javax.swing.JComponent.paint(JComponent.java:689)
        at javax.swing.JComponent.paintChildren(JComponent.java:536)
        at javax.swing.JComponent.paint(JComponent.java:698)
        at javax.swing.JComponent.paintChildren(JComponent.java:536)
        at javax.swing.JComponent.paint(JComponent.java:698)
        at javax.swing.JLayeredPane.paint(JLayeredPane.java:548)
        at javax.swing.JComponent.paintChildren(JComponent.java:536)
        at javax.swing.JComponent.paintWithOffscreenBuffer(JComponent.java:4240)
        at javax.swing.JComponent.paintDoubleBuffered(JComponent.java:4186)
        at javax.swing.JComponent.paint(JComponent.java:679)
        at java.awt.GraphicsCallback$PaintCallback.run(GraphicsCallback.java:24)
        at sun.awt.SunGraphicsCallback.runOneComponent(SunGraphicsCallback.java:63)
        at sun.awt.SunGraphicsCallback.runComponents(SunGraphicsCallback.java:100)
        at java.awt.Container.paint(Container.java:1036)
        at javax.swing.JFrame.update(JFrame.java:339)
        at sun.awt.RepaintArea.paintRect(RepaintArea.java:331)
        at sun.awt.RepaintArea.paint(RepaintArea.java:321)
        at sun.awt.motif.MComponentPeer.handleEvent(MComponentPeer.java:309)
        at java.awt.Component.dispatchEventImpl(Component.java:2965)
        at java.awt.Container.dispatchEventImpl(Container.java:1309)
        at java.awt.Window.dispatchEventImpl(Window.java:1228)
        at java.awt.Component.dispatchEvent(Component.java:2764)
        at java.awt.EventQueue.dispatchEvent(EventQueue.java:423)
        at java.awt.EventDispatchThread.pumpOneEvent(EventDispatchThread.java:136)
        at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:122)
        at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:118)
        at java.awt.EventDispatchThread.run(EventDispatchThread.java:98)