RFR: 8341282: (fs) Move creation time fallback logic to Java layer (Linux) [v5]

[Severin Gehwolf]

On Wed, 2 Oct 2024 20:12:49 GMT, Brian Burkhalter <bpb at openjdk.org> wrote:

>> Move the decision as to whether `BasicFileAttributes.creationTime()` falls back to the modified time from the native layer to the Java layer.
>
> Brian Burkhalter has updated the pull request incrementally with one additional commit since the last revision:
> 
>   8341282: On Linux, only set birthtime fields if available; fix macOS build failure

Marked as reviewed by sgehwolf (Reviewer).

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PR Review: https://git.openjdk.org/jdk/pull/21274#pullrequestreview-2344932717