RFR: 8224261: JProgressBar always with border painted around it

[Sergey Bylokhov]

On Thu, 2 Nov 2023 04:13:17 GMT, Abhishek Kumar <abhiscxk at openjdk.org> wrote:

> JProgressBar is always painted with border irrespective of the value set via the API `setBorderPainted(boolean value)` in Synth (Nimbus and GTK) LAF. Proposed fix is to add a check before painting the component.
> 
> CI jobs are green after the fix. Links attached to JBS.

test/jdk/javax/swing/JProgressBar/TestProgressBarBorder.java line 79:

> 77: 
> 78:                 BufferedImage borderPaintedImg =
> 79:                         robot.createScreenCapture(new Rectangle(pt.x, pt.y,

I think the test can be simplified by rendering the progress bar into the buffered image directly.

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PR Review Comment: https://git.openjdk.org/jdk/pull/16467#discussion_r1389925080