RFR: 8318458: Update javac and java manpages with restricted method options

Wed Oct 18 16:23:59 UTC 2023

On Wed, 18 Oct 2023 15:32:34 GMT, Maurizio Cimadamore <mcimadamore at openjdk.org> wrote:

> This PR updates the man pages for `javac` and `java` to document:
> * the new `javac` warning for restricted methods (`-Xlint:restricted`)
> * the `java` option to allow access to restricted methods without warnings (`--enable-native-access`)

Marked as reviewed by iris (Reviewer).

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PR Review: https://git.openjdk.org/jdk/pull/16249#pullrequestreview-1685540336