RFR: 8371860: Make non-public methods in java_lang_Class private

[Frederic Parain]

On Thu, 13 Nov 2025 21:26:56 GMT, Coleen Phillimore <coleenp at openjdk.org> wrote:

> Please review this small cleanup for method declarations in java_lang_Class.
> Testing with tier1-4.

Marked as reviewed by fparain (Reviewer).

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PR Review: https://git.openjdk.org/jdk/pull/28308#pullrequestreview-3465104379