Method Window.show() throws unexpected NullPointerException

Name: dsC58869 Date: 09/29/98



The java.awt.Window.show() method throws NullPointerException when
this window's owner has its own owner.

==== Here is the test demonstrating the bug ====
import java.awt.*;

public class WindowTest01 {

    public static void main (String args[]) {
Frame parent = new Frame("Frame");
Window owner = new Window(parent);
Window window = new Window(owner);
try {
window.show();
System.out.println("OKAY");
} catch (NullPointerException npe) {
npe.printStackTrace();
System.out.println("failed");
}
System.exit(0);
    }
}

=== OUTPUT ===
%java WindowTest01
java.lang.NullPointerException: NullPointerException
        at sun.awt.motif.MWindowPeer.create(Native Method)
        at sun.awt.motif.MComponentPeer.init(Compiled Code)
        at sun.awt.motif.MWindowPeer.<init>(Compiled Code)
        at sun.awt.motif.MToolkit.createWindow(Compiled Code)
        at java.awt.Window.addNotify(Compiled Code)
        at java.awt.Window.show(Compiled Code)
        at WindowTest01.main(Compiled Code)
failed
%

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 Justification:
Unexpected behavior.

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