13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 import java.awt.Color;
  25 import java.awt.Rectangle;
  26 import java.awt.Robot;
  27 import javax.swing.JFrame;
  28 import javax.swing.JPanel;
  29 import javax.swing.SwingUtilities;
  30 
  31 /**
  32  * @test

  33  * @bug 8175301
  34  * @summary Java GUI hangs on Windows when Display set to 125%
  35  * @run main/othervm -Dsun.java2d.uiScale=2 ScaledFrameBackgroundTest
  36  * @run main/othervm -Dsun.java2d.uiScale=2 -Dsun.java2d.d3d=true ScaledFrameBackgroundTest
  37  * @run main/othervm -Dsun.java2d.uiScale=2 -Dsun.java2d.opengl=true ScaledFrameBackgroundTest
  38  */
  39 public class ScaledFrameBackgroundTest {
  40 
  41     private static final Color BACKGROUND = Color.RED;
  42     private static JFrame frame;
  43 
  44     public static void main(String[] args) throws Exception {
  45 
  46         Robot robot = new Robot();
  47         robot.setAutoDelay(50);
  48 
  49         SwingUtilities.invokeAndWait(() -> {
  50             frame = new JFrame();
  51             frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
  52             frame.setSize(400, 300);

  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 import java.awt.Color;
  25 import java.awt.Rectangle;
  26 import java.awt.Robot;
  27 import javax.swing.JFrame;
  28 import javax.swing.JPanel;
  29 import javax.swing.SwingUtilities;
  30 
  31 /**
  32  * @test
  33  * @key headful
  34  * @bug 8175301
  35  * @summary Java GUI hangs on Windows when Display set to 125%
  36  * @run main/othervm -Dsun.java2d.uiScale=2 ScaledFrameBackgroundTest
  37  * @run main/othervm -Dsun.java2d.uiScale=2 -Dsun.java2d.d3d=true ScaledFrameBackgroundTest
  38  * @run main/othervm -Dsun.java2d.uiScale=2 -Dsun.java2d.opengl=true ScaledFrameBackgroundTest
  39  */
  40 public class ScaledFrameBackgroundTest {
  41 
  42     private static final Color BACKGROUND = Color.RED;
  43     private static JFrame frame;
  44 
  45     public static void main(String[] args) throws Exception {
  46 
  47         Robot robot = new Robot();
  48         robot.setAutoDelay(50);
  49 
  50         SwingUtilities.invokeAndWait(() -> {
  51             frame = new JFrame();
  52             frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
  53             frame.setSize(400, 300);