On some platforms, native MenuBar/MenuItem might not have the ability to change the fonts in it. Due to that, there's no way of implementing correct
setFont() behavior for such a MenuBar/MenuItem.

Specifically, APPLE's MAC OS X graphic library doesn't allow setting fonts
in the MenuBar/MenuItem. Need to relax the MenuBar/MenuItem.setFont() spec in order for Apple to be able to provide compatible jdk implementation.

Since MenuBar/MenuItem inherit setFont() from awt.MenuComponent,
I propose to add the following sentence to the java.awt.MenuComponent.setFont()
spec:
  "setFont() might not work if underlying native menucomponent
does not support setting of the font"

This bug is related to another bug 4414599, which reports the
fact that MenuBar.setFont() behavior is also incorrect in our reference
implementation.

Please see the following message from Apple:

Date: Mon, 5 Feb 2001 18:53:55 -0800
From: Peri Frantz <###@###.###>
Cc: Peter Steinauer <###@###.###>, Barry Langdon-Lassagne <###@###.###>, Peri Frantz <###@###.###>
To: Kirill Soshalsky <###@###.###>
Subject: Exclusion Request for MenuBarTest0001

Kirill,

We've got another Exclusion request, based on platform dependent
behavior.

MenuBarTest0001 (jrt attached) assumes that the font, font size, and
font style in the menubar is setable. This is not true on a Macintosh.

Thanks, once again, Peri

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