RFR: 8278620: properties installed by javax.swing.LookAndFeel installColors and installColorsAndFont are not uninstalled [v3]

[SWinxy]

On Fri, 24 Feb 2023 00:07:20 GMT, Phil Race <prr at openjdk.org> wrote:

> And if a default font prevents the FontUIResource from being installed, how does it get installed the in the first place ?
Perhaps that first time the component has no peer and it really is null ?

The font is null when it's created. Calling `getFont` causes it to go up the hierarchy, if it has a parent. The UI looks to be initialized (and thus a font is set) before `getFont` is called.

> FontUIResource is something devised by Swing, for Swing.
Making AWT components depend on it for the convenience of Swing is backwards.

D'oh.

> It seems you would have to explicitly track whether the app set the font omn the JComponent rather than using this mechanism .. and if it did not then ignore whatever the font is ??
But I'm guessing and it adds just another bit more risk+complexity to this change.

Sounds like the path would be to undo my last commit and just put a note in the code.

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PR: https://git.openjdk.org/jdk/pull/10565