<Swing Dev> Java 9 and Windows LF (Win2012): Visual changes of JToggleButton#setBorderPainted(false)?

[Reto Merz]

Hello,

We call JToggleButton#setBorderPainted(false). With Java 9 and Windows LF (other LF not tested)
the button has no longer a visual inidicator when the button is toggled
in contrary to Java 8 where the button is light-blue-gray.

Is this the new expected behaviour or is this a (known) bug?

Tested with Java 9 b177, 8 u102 and 8 u131 on Windows 2012 R2.

Thanks
Reto