RFR: 8341282: (fs) Move creation time fallback logic to Java layer (Linux) [v4]

[Brian Burkhalter]

On Wed, 2 Oct 2024 17:23:09 GMT, Alan Bateman <alanb at openjdk.org> wrote:

>>> I think I need a reminder as to why we put values into these two fields when not available.
>> 
>> There's no reason to do so except to avoid testing availability.
>
> It still must test, in order to set the right value for the new available field.

I'll change it.

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PR Review Comment: https://git.openjdk.org/jdk/pull/21274#discussion_r1784940339