hg: jdk9/client/jdk: 8165705: Robot.createScreenCapture produces black screenshot on Oracle Linux 7.1

[alexander.zvegintsev at oracle.com]

Changeset: 1089d8a8a6e1
Author:    azvegint
Date:      2017-01-16 16:37 +0300
URL:       http://hg.openjdk.java.net/jdk9/client/jdk/rev/1089d8a8a6e1

8165705: Robot.createScreenCapture produces black screenshot on Oracle Linux 7.1
Reviewed-by: serb

! src/java.desktop/unix/classes/sun/awt/X11/XRobotPeer.java