RFR: 8328819: Remove applet usage from JFileChooser tests bug6698013 [v3]

[Tejesh R]

On Tue, 26 Mar 2024 22:41:45 GMT, Alisen Chung <achung at openjdk.org> wrote:

>> Removing applet usage from manual JFileChooser tests
>> The original test is failing (nothing shows up in the JFileChooser), but this change does replace the applet usage with PassFailJFrame
>
> Alisen Chung has updated the pull request incrementally with one additional commit since the last revision:
> 
>   update test instructions, move vars into subclass

Marked as reviewed by tr (Committer).

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PR Review: https://git.openjdk.org/jdk/pull/18456#pullrequestreview-1962207372