The following method:

http://download.java.net/jdk8/docs/api/java/awt/GraphicsDevice.html#setDisplayMode-java.awt.DisplayMode-

"passing a display mode with DisplayMode.REFRESH_RATE_UNKNOWN refresh rate will result in selecting a display mode from the list of available display modes with matching width, height and bit depth."

However this might not be so - there are MacOSX systems where refresh rate is completely unknown for all the display modes

Reproducible: Always
Checked on machine: stt-mac-09
Is it a platform specific issue: yes
Steps to reproduce: run attached file