RFR: JDK-8353011 : Open source Swing JButton tests - Set 1

[Sergey Bylokhov]

On Fri, 18 Apr 2025 23:46:52 GMT, Harshitha Onkar <honkar at openjdk.org> wrote:

> Following tests are open sourced in this PR:
> 
> javax/swing/JButton/bug4151763.java
> javax/swing/JButton/bug4415505.java
> javax/swing/JButton/bug4978274.java
> javax/swing/JRadioButton/bug4673850.java
> javax/swing/JTable/bug4188504.java

Marked as reviewed by serb (Reviewer).

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PR Review: https://git.openjdk.org/jdk/pull/24765#pullrequestreview-2782156772