RFR: 8190264: JScrollBar ignores its border when using macOS Mac OS X Aqua look and feel [v4]

[Sergey Bylokhov]

On Wed, 17 Nov 2021 18:55:20 GMT, Alisen Chung <achung at openjdk.org> wrote:

>> Adjusted the AquaLF scrollbar to account for border inset settings when dragging the thumb and clicking on the track.
>
> Alisen Chung has updated the pull request incrementally with one additional commit since the last revision:
> 
>   added summary and copyright

test/jdk/java/awt/Scrollbar/AquaLFScrollbarTest/ScrollBarBorderTest.java line 114:

> 112:                 = "\nINSTRUCTIONS:\n"
> 113:                 + "\n   Try to drag the thumb of the scrollbar into the red zone."
> 114:                 + "\n   If the thumb is able to go into the red zone, click fail."

If you place the thumb to the red zone by the code, will it be possible to check that by pixel color?

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PR: https://git.openjdk.java.net/jdk/pull/6374