<AWT Dev> RFR: 8232744 j.awt.Window::setShape(Shape) paints visible artifacts outside of the given shape

[Sergey Bylokhov]

Hello.
Please review the fix for jdk/client.

Bug: https://bugs.openjdk.java.net/browse/JDK-8232744
Fix: http://cr.openjdk.java.net/~serb/8232744/webrev.00

This mostly the call for discussion, on how to specify that
the "appearance" to some extent cannot be controlled by the AWT.

The bug in question is about the shadow around the shaped window.

-- 
Best regards, Sergey.