[code-reflection] RFR: Use JUnit instead of TestNG

[Mourad Abbay]

On Fri, 12 Sep 2025 17:53:57 GMT, Paul Sandoz <psandoz at openjdk.org> wrote:

> One area we need to pay special attention to is the order of arguments of assert methods. junit and testng switch the order actual and expected parameters of such methods.

Yes. But It won't affect the test result, right ?

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PR Comment: https://git.openjdk.org/babylon/pull/566#issuecomment-3292000038