RFR: 8313651: Add 'final' keyword to public property methods in controls [v2]

[John Hendrikx]

On Fri, 18 Aug 2023 22:17:15 GMT, Andy Goryachev <angorya at openjdk.org> wrote:

>> In the Control hierarchy, all property accessor methods must be declared `final`.
>> 
>> Added a test to check for missing `final` keyword and added the said keyword where required.
>
> Andy Goryachev has updated the pull request incrementally with one additional commit since the last revision:
> 
>   review comments

Marked as reviewed by jhendrikx (Committer).

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PR Review: https://git.openjdk.org/jfx/pull/1213#pullrequestreview-1585279422