RFR: 8337143: (fc, fs) Move filesystem-related native objects from libnio to libjava [v5]

[Brian Burkhalter]

On Wed, 11 Sep 2024 16:51:43 GMT, Daniel Jeliński <djelinski at openjdk.org> wrote:

>> Yes, it still needs to be called in a few places, e.g., for classes whose native component needs the `fdval()` and `handleval()` functions.
>
> that's a good point. The comment might need to be updated to reflect that.

Comments added in 853d349.

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PR Review Comment: https://git.openjdk.org/jdk/pull/20317#discussion_r1755983974