ADDITIONAL SYSTEM INFORMATION :
Windows 7, 64 Bit, OpenJDK 11+28

A DESCRIPTION OF THE PROBLEM :
In OpenJDK 11 the method Toolkit.getScreenSize() returns an incorrect size on a Windows 7 single screen system.


REGRESSION : Last worked in version 8u181

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Compile and run the program below with OpenJDK 11+28
on a Windows 7 64 bit system with single screen



EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
My Notebook has a screen size of 1600x900 pixel.
Expected output of the sample programm is:

java.awt.Dimension[width=1600,height=900]

ACTUAL -
java.awt.Dimension[width=1280,height=720]

In OracleJDK 1.8.0_161 the correct screen size is returned:
java.awt.Dimension[width=1600,height=900]


---------- BEGIN SOURCE ----------
public class ShowScreenSize {
  public static void main( String[] args ) {
    System.out.println( java.awt.Toolkit.getDefaultToolkit().getScreenSize() );
  }
}

---------- END SOURCE ----------

FREQUENCY : always