git: openjdk/jdk17u-dev: 8283507: Create a regression test for RFE 4287690

[Goetz Lindenmaier]

Changeset: 64db633e
Author:    Goetz Lindenmaier <goetz at openjdk.org>
Date:      2022-08-02 09:13:41 +0000
URL:       https://git.openjdk.org/jdk17u-dev/commit/64db633e9152dd54296e09963304312c361ad6b2

8283507: Create a regression test for RFE 4287690

Backport-of: 7edd18612155b8e66f214a17e65ef775b470955e

+ test/jdk/javax/swing/JComboBox/JComboBoxPopupMenuEventTest.java