JInternalFrame.getNormalBounds() returns bad value after iconify/deiconify

FULL PRODUCT VERSION :
java version "1.7.0_02"
Java(TM) SE Runtime Environment (build 1.7.0_02-b13)
Java HotSpot(TM) Client VM (build 22.0-b10, mixed mode, sharing)

ADDITIONAL OS VERSION INFORMATION :
Microsoft Windows XP [Version 5.1.2600]

A DESCRIPTION OF THE PROBLEM :
The method
    public Rectangle getNormalBounds()
of the class
    javax.swing.JInternalFrame
return stored value if JInternalFrame was iconified.


STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
User action in test case - minimize internal frame, restore internal frame, move internal frame;

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
Output for last two calls should be the same.
ACTUAL -
internalFrameIconified - bounds=java.awt.Rectangle[x=0,y=0,width=200,height=200]
internalFrameIconified - normalBounds=java.awt.Rectangle[x=0,y=0,width=200,height=200]
internalFrameDeiconified - bounds=java.awt.Rectangle[x=0,y=0,width=200,height=200]
internalFrameDeiconified - normalBounds=java.awt.Rectangle[x=0,y=0,width=200,height=200]
componentMoved - bounds=java.awt.Rectangle[x=172,y=73,width=200,height=200]
componentMoved - normalBounds=java.awt.Rectangle[x=0,y=0,width=200,height=200]


REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
import java.awt.event.ComponentAdapter;
import java.awt.event.ComponentEvent;
import java.text.MessageFormat;
import javax.swing.JDesktopPane;
import javax.swing.JFrame;
import javax.swing.JInternalFrame;
import javax.swing.SwingUtilities;
import javax.swing.WindowConstants;
import javax.swing.event.InternalFrameAdapter;
import javax.swing.event.InternalFrameEvent;

public class NormalBoundsTest
{
    public static void main(final String... pArgs)
    {
        SwingUtilities.invokeLater(new Runnable()
        {
            @Override
            public void run()
            {
                new NormalBoundsTest().startup();
            }
        });
    }

    private JFrame mainFrame;
    private JInternalFrame internalFrame;

    public NormalBoundsTest()
    {
        internalFrame = new JInternalFrame("Internal", true, true, true, true);
        internalFrame.setDefaultCloseOperation(WindowConstants.DO_NOTHING_ON_CLOSE);
        internalFrame.setSize(200, 200);
        internalFrame.addComponentListener(new ComponentAdapter()
        {
            @Override
            public void componentMoved(final ComponentEvent pEvent)
            {
                logBounds("componentMoved");
            }
        });
        internalFrame.addInternalFrameListener(new InternalFrameAdapter()
        {
            @Override
            public void internalFrameDeiconified(final InternalFrameEvent pEvent)
            {
                logBounds("internalFrameDeiconified");
            }

            @Override
            public void internalFrameIconified(final InternalFrameEvent pEvent)
            {
                logBounds("internalFrameIconified");
            }
        });

        JDesktopPane lDesktopPane = new JDesktopPane();
        lDesktopPane.setDragMode(JDesktopPane.OUTLINE_DRAG_MODE);
        lDesktopPane.add(internalFrame);

        mainFrame = new JFrame("Test");
        mainFrame.setSize(640, 480);
        mainFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        mainFrame.setContentPane(lDesktopPane);

        internalFrame.setVisible(true);
    }

    protected void logBounds(final String pName)
    {
        System.out.println(MessageFormat.format("{1} - bounds={0}", internalFrame.getBounds(), pName));
        System.out.println(MessageFormat.format("{1} - normalBounds={0}", internalFrame.getNormalBounds(), pName));
    }

    protected void startup()
    {
        mainFrame.setVisible(true);
    }
}

---------- END SOURCE ----------