RFR: 8354695: Open source several swing tests batch7

[Andrey Turbanov]

On Fri, 18 Apr 2025 18:39:09 GMT, Damon Nguyen <dnguyen at openjdk.org> wrote:

> Open-sourcing and standardizing several swing tests (JScrollPane & JRootPane)

test/jdk/javax/swing/JScrollPane/AcceleratedWheelScrolling/RTLScrollers.java line 250:

> 248:                 comp.setBackground(Color.RED);
> 249:             }
> 250:             else if ((row  + 1) % 3 == 0) {

Suggestion:

            else if ((row + 1) % 3 == 0) {

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PR Review Comment: https://git.openjdk.org/jdk/pull/24758#discussion_r2052085154