RFR: 8338884: java/nio/file/attribute/BasicFileAttributeView/CreationTime.java#tmp fails on alinux3 [v5]

[Severin Gehwolf]

On Tue, 3 Sep 2024 07:35:55 GMT, SendaoYan <syan at openjdk.org> wrote:

>> test/jdk/java/nio/file/attribute/BasicFileAttributeView/CreationTime.java line 164:
>> 
>>> 162:             String l = b.readLine();
>>> 163:             if (l != null && l.equals("-")) { return false; }
>>> 164:         } catch(Exception e) {
>> 
>> There are several bugs/issues with this method, did you mean to bring it back? If we are launching subprocesses in this test then it can use ProcessTools infrastructure.
>
> It's difficult to enumerate all the combination of file system type and linux kernel version to determine the testd file support birth time or not, So I want to bring it back.
> Thanks for the advice, I will use `ProcessTools infrastructure` later.

An alternative could be to use FFM API to query the statx bufs mask the kernel returns testing for the birth time bit like the actual code does.

-------------

PR Review Comment: https://git.openjdk.org/jdk/pull/20687#discussion_r1741630915