RFR: 8341282: (fs) Move creation time fallback logic to Java layer (Linux) [v2]

[Brian Burkhalter]

On Tue, 1 Oct 2024 18:21:58 GMT, Severin Gehwolf <sgehwolf at openjdk.org> wrote:

> Saw this too late...

No worries. The only thing different in 22ac46e is setting `birthtime_available = false` when `stat(2)` is used on Linux.

> src/java.base/unix/native/libnio/fs/UnixNativeDispatcher.c line 633:
> 
>> 631:     // filled in if and only if the STATX_BTIME bit is set in the mask.
>> 632:     // Although the statx system call might be supported by the operating
>> 633:     // system, the birth time is not necessarily supported by the file system.
> 
> Nice comment!

Thanks.

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PR Comment: https://git.openjdk.org/jdk/pull/21274#issuecomment-2386939481
PR Review Comment: https://git.openjdk.org/jdk/pull/21274#discussion_r1783442355