RFR: 8339513: [TestBug] Convert fxml tests to JUnit 5 [v2]

[Marius Hanl]

On Mon, 16 Sep 2024 11:04:24 GMT, Ajit Ghaisas <aghaisas at openjdk.org> wrote:

>> This converts FXML module tests to junit5.
>> 
>> All changes are trivial API replacements from junit4 to junit5.
>> There are no parameterized tests in this module.
>
> Ajit Ghaisas has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Formatting fixes

Marked as reviewed by mhanl (Committer).

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PR Review: https://git.openjdk.org/jfx/pull/1564#pullrequestreview-2306841505