No problems in that case, ie this code :-
import java.awt.*;

public class GW {


    public static void main(String s[]) {
GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment
();
        ge.getScreenDevices();
        java.awt.Toolkit.getDefaultToolkit().getScreenSize();

    }

}

Also I did basic checking that SwingSet still  comes up fine.

-phil.

On 11/25/2015 12:52 PM, Jim Graham wrote:
I don't see anything wrong with this and it fixes the crash so it must be better.

The only thing I'd suggest is to verify that the new code doesn't cause problems in the case where the devices were already initialized. If that's OK too, then I think this is a good fix.

But hopefully someone in the AWT team can confirm that UpdateDevices is safe to call there...

One issue to track for maybe fixing up later is if this bypasses the handling of the -Dsun.java2d.uiScale property...?

        ...jim

On 11/25/15 11:39 AM, Phil Race wrote:
This resolves a crash on WIndows startup due to changes in the hidpi
support
that requires the graphics devices be initialised first in order to get
screen dimensions.

http://cr.openjdk.java.net/~prr/8144074/
https://bugs.openjdk.java.net/browse/JDK-8144074

-phil.

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