RFR: 7904086: Fix docs that JUnit tests need no `@build` for `@library` contents

Thu Sep 25 10:38:29 UTC 2025

On Thu, 25 Sep 2025 09:23:33 GMT, Volkan Yazici <vyazici at openjdk.org> wrote:

> If a library directory is used by a directory of TestNG **or JUnit** tests, all the classes in a library directory will be automatically compiled by means of implicit `@build` tags. Amend the docs accordingly.

Marked as reviewed by cstein (Reviewer).

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PR Review: https://git.openjdk.org/jtreg/pull/292#pullrequestreview-3266997499