RFR: 8315677: Open source few swing JFileChooser and other tests

[Abhishek Kumar]

On Tue, 12 Sep 2023 05:03:36 GMT, Tejesh R <tr at openjdk.org> wrote:

>> Few closed JFileChooser and other swing tests are open sourced.
>
> test/jdk/javax/swing/JFileChooser/bug4624353.java line 55:
> 
>> 53:                 fr.getContentPane().add(fc);
>> 54:                 fr.pack();
>> 55:                 fr.setVisible(true);
> 
> Delay might be required before starting test.

Didn't observe any failure for multiple runs without delay.

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PR Review Comment: https://git.openjdk.org/jdk/pull/15626#discussion_r1322884992