<AWT Dev> [9] Review request for 8177919: java.awt.Desktop.setDefaultMenuBar​() should be specified to throw IllegalStateException

[Alexander Zvegintsev]

Hello,

please review the fix

http://cr.openjdk.java.net/~azvegint/jdk/9/8177919/00/

for the issue

https://bugs.openjdk.java.net/browse/JDK-8177919

This fix removes throwing of ISE, this allows to use default menu bar 
with LaF's other than Aqua (with apple.laf.useScreenMenuBar set to true).

This became possible after JDK-8166683[0] fix.

Current documentation of Desktop.setDefaultMenuBar() has implnotes:

      * @implNote Aqua Look and Feel should be active to support this on 
Mac OS.

I leave it unchanged, since I don't want to advertise the 
apple.laf.useScreenMenuBar property.

[0] https://bugs.openjdk.java.net/browse/JDK-8166683


-- 
Thanks,
Alexander.