RFR: 8328648: Remove applet usage from JFileChooser tests bug4150029 [v3]

[Damon Nguyen]

On Tue, 26 Mar 2024 02:20:35 GMT, Alisen Chung <achung at openjdk.org> wrote:

>> Removing applet usage from manual JFileChooser tests
>
> Alisen Chung has updated the pull request incrementally with one additional commit since the last revision:
> 
>   change to automatic test

test/jdk/javax/swing/JFileChooser/4150029/bug4150029.java line 95:

> 93:                 fileChooser = new JFileChooser(subDir);
> 94:                 fileChooser.setControlButtonsAreShown(false);
> 95:                 frame.getContentPane().add(fileChooser, BorderLayout.CENTER);

Suggestion:

                frame.add(fileChooser, BorderLayout.CENTER);


It was brought to my attention in one of my PRs that `getContentPane()` is obsolete as of JDK 1.5. They referenced  https://github.com/openjdk/jdk/pull/18390#discussion_r1533017080.

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PR Review Comment: https://git.openjdk.org/jdk/pull/18415#discussion_r1539938437