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

[Alisen Chung]

On Fri, 3 Dec 2021 19:13:08 GMT, Sergey Bylokhov <serb at openjdk.org> wrote:

>> You can render directly to the BufferedImage instead of the JFrame, so in this case, it will not be necessary to use a robot, you will be able to check the pixel directly.
>
> For example, you can take a look at the JButtonPaintNPE or TestBadBreak tests.

In the TestBadBreak example, how do you know it's properly painting onto the final BufferedImage? When I try the same it doesn't seem to be painting anything on the BufferedImage, so there's no colors to compare.

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