RFR: 8272808: Update constant collections to use the new immutable collections - leftovers

[delvh]

On Tue, 21 Sep 2021 11:13:06 GMT, Nir Lisker <nlisker at openjdk.org> wrote:

> Replacements of more immutable collections.
> 
> One thing I found was that the field `idMap` in `com.sun.java.scene.web.WebViewHelper.WebView` seems unused. I can remove it if that's indeed the case.

modules/javafx.graphics/src/main/java/com/sun/javafx/font/WindowsFontMap.java line 32:

> 30: class WindowsFontMap {
> 31: 
> 32:     private static class FamilyDescription {

Isn't that basically a `record`  in disguise?
Letting this class be a record would remove a lot of lines, especially down below.
Also, it would come with the benefit of not having to worry about whether these values have been changed or not as they would then always be final.
To me at least it does not look as if variables of this class should be mutable after having been created.

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PR: https://git.openjdk.java.net/jfx/pull/627