8266079: Lanai: AlphaComposite shows differences on Metal compared to OpenGL #62
With this patch shaped windows with translucent/color background are showing only black background. In manual JCK shaped window test also this difference in behaviour is seen.
This behaviour difference can be checked using Ruler.java test case attached in https://bugs.openjdk.java.net/browse/JDK-8267963
… OpenGL Keep layer translucent for translucent windows