git: openjdk/jdk17u-dev: 8282778: Create a regression test for JDK-4699544

[Goetz Lindenmaier]

Changeset: 1584ddc8
Author:    Goetz Lindenmaier <goetz at openjdk.org>
Date:      2022-06-21 14:44:18 +0000
URL:       https://git.openjdk.org/jdk17u-dev/commit/1584ddc8975ab33f2f67a5fc1dca2bd82f666f83

8282778: Create a regression test for JDK-4699544

Backport-of: cfdbde11f0bc2b61590eec2aaa9906f13c64e19e

+ test/jdk/javax/accessibility/JRootPaneAccessiblAtTest.java