[OpenJDK 2D-Dev] RFR: Fix for 8027541: Fully transparent jframe becomes black.

[Clemens Eisserer]

Hi Phil,

> http://cr.openjdk.java.net/~prr/8027541/
>
> In the case where there is an alpha color on the window, the
> X11 pipeline looks at the color model of the GraphicsConfiguration
> and upgrades the surface to one with alpha. This makes the Xrender
> pipeline do the same. SQE test failure, so no regression test needed
> in this case.

Thanks for taking care of this one.
The fix looks fine to me.

Regards, Clemens