git: openjdk/jdk21u-dev: master: 8341978: Improve JButton/bug4490179.java

[Goetz Lindenmaier]

Changeset: 30eeb80f
Branch: master
Author:    Goetz Lindenmaier <goetz at openjdk.org>
Date:      2024-12-17 13:28:51 +0000
URL:       https://git.openjdk.org/jdk21u-dev/commit/30eeb80fac1f56b70cde746890d25208f2743900

8341978: Improve JButton/bug4490179.java

Use latch to synchronize actions in the test.
Verify mouseButton3Released does not trigger actionPerformed
while mouse button 1 is pressed.
Ensure mouse button 1 is released.
Verify releasing mouse button 1 triggers actionPerformed.

Backport-of: 8174cbd5cb797a80d48246a686897ef6fe64ed57

! test/jdk/javax/swing/JButton/bug4490179.java