Name: mf23781 Date: 06/23/98


When using JInternalFrames placed in a JDesktopPane,
maximizing the frame,then minimize the frame, then
maximizing the frame, then restoring the frame doesn't
restore the internal frame. The restore button changes to a
maximise button as it should do if the JInternalFrame was being
restored to its minimised state, but the JInternalFrame remains
in the maximised state.

When using JInternalFrames placed in a JDesktopPane, minimizing the frame, followed by maximizing, followed by minimizing, followed by maximizing causes the frame to disappear.
Source code follows:
 
import java.awt.*;
import com.sun.java.swing.*;
 
public class minmax
{
    public static void main(String args[])
    {
        try
        {
             UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
        }
        catch (Exception e)
        {
        }
        // build the main window
        JFrame frame = new JFrame();
        frame.setSize(new Dimension(600, 400));
        JDesktopPane desktop = new JDesktopPane();
        JPanel mainPanel = new JPanel();
        mainPanel.setLayout(new BorderLayout());
        mainPanel.add(BorderLayout.CENTER,desktop);
        frame.setContentPane(mainPanel);
        frame.setTitle("desktop");
        frame.show();
        frame.validate();
        frame.repaint();
        // build some jinternal frames
        JInternalFrame win1 = new JInternalFrame("win1", true, true, true, true);
        win1.setBounds(new Rectangle(0, 0, 100, 100));
        JInternalFrame win2 = new JInternalFrame("win2", true, true, true, true);
        win2.setBounds(new Rectangle(0, 0, 100, 100));
        desktop.add(win1, desktop.DEFAULT_LAYER);
        desktop.add(win2, desktop.DEFAULT_LAYER);
   }
}

NB. This is the same test case as the one in bug 4150568 and
may be related.

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