RFR: 8328558: Convert javax/swing/JCheckBox/8032667/bug8032667.java applet test to main [v2]

[Prasanta Sadhukhan]

On Wed, 20 Mar 2024 22:16:36 GMT, Damon Nguyen <dnguyen at openjdk.org> wrote:

>> Convert javax/swing/JCheckBox/8032667/bug8032667.java applet test to main using PassFailJFrame
>
> Damon Nguyen has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Add new line

Marked as reviewed by psadhukhan (Reviewer).

test/jdk/javax/swing/JCheckBox/bug8032667.java line 87:

> 85:             }
> 86:         };
> 87:         frame.getContentPane().add(canvas, BorderLayout.CENTER);

It seems getContentPane is not needed and is obsoleted since jdk1.5...See this [comment](https://github.com/openjdk/jdk/pull/18390#discussion_r1533017080)

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PR Review: https://git.openjdk.org/jdk/pull/18403#pullrequestreview-1950755132
PR Review Comment: https://git.openjdk.org/jdk/pull/18403#discussion_r1533245336