JCK : JCK6.0-runtime b14
J2SE : FAIL - JDK6.0 b60-b65
                 PASS -
Platform[s] : FAIL - windows vista amd64

How to reproduce:
====================
//uncomment d.setVisible(true); or f.setVisible(true);

import java.awt.*;

public class Test {
    public static void main (String[] args) {

        int s = Dialog2021();
        
        System.exit(s);
    }

    public static int Dialog2021() {

        Frame f = new Frame();
// Dialog d = new Dialog(f);
// d.setVisible(true);
        f.setVisible(true);

                return 95;
    }
}

Test output:
=============
test return "0" instead of "95"

Specific Machine Info:
=====================
Windows vista on amd64

JCK tests fail:
======================
 api/java_awt/Dialog/index.html#Decorated
 api/java_awt/Frame/descriptions.html#Decorated
 api/java_awt/Robot/index.html#key
 api/java_awt/interactive/event/EventTests.html#EventTest0002
 api/java_awt/interactive/event/EventTests.html#EventTest0009
 api/java_awt/interactive/event/EventTests.html#EventTest0010
 api/java_awt/interactive/event/EventTests.html#EventTest0012
 api/javax_swing/DefaultFocusManager/index.html#getset
 api/javax_swing/border/BevelBorder/index.html#Ctor
 api/javax_swing/border/EtchedBorder/index.html#Ctor
 api/javax_swing/border/LineBorder/index.html#Ctor
 api/javax_swing/border/MatteBorder/index.html#Ctor
 api/javax_swing/border/SoftBevelBorder/index.html#Ctor
 api/javax_swing/plaf/metal/MetalToggleButtonUI/index.html#update
 api/javax_swing/plaf/metal/MetalToolBarUI/MetalDockingListener/index.html#Handler
 api/javax_swing/plaf/multi/MultiDesktopIconUI/index.html#public
 api/javax_swing/plaf/multi/MultiProgressBarUI/index.html#public
 api/javax_swing/plaf/multi/MultiScrollBarUI/index.html#public
 api/javax_swing/plaf/multi/MultiSeparatorUI/index.html#public
 api/javax_swing/plaf/multi/MultiSliderUI/index.html#public
 api/javax_swing/plaf/multi/MultiTabbedPaneUI/index.html#public
 api/javax_swing/plaf/multi/MultiTreeUI/index.html#public
New testcases failed with the same exception on Windows Vista on mustang b67:
api/javax_swing/text/JTextComponent/AccessibleJTextComponent/index.html#AccessibleText
api/javax_swing/LayoutFocusTraversalPolicy/index.html#Methods
api/javax_swing/SortingFocusTraversalPolicy/index.html#Methods