RFR: 8353053: (fs) Add support for UserDefinedFileAttributeView on AIX [v2]

[Joachim Kern]

On Thu, 27 Mar 2025 13:19:07 GMT, Varada M <varadam at openjdk.org> wrote:

>> In AIX, the JFS2 supports extended attributes which has fgetea, fsetea, flistea, femoveea APIs support fetching, setting, listing and removing extended attributes. 
>> 
>> JBS: [JDK-8353053](https://bugs.openjdk.org/browse/JDK-8353053)
>
> Varada M has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains five additional commits since the last revision:
> 
>  - Merge branch 'openjdk:master' into basic.java
>  - UserDefinedFileAttributeView not supported on AIX
>  - UserDefinedFileAttributeView not supported on AIX
>  - UserDefinedFileAttributeView not supported on AIX
>  - UserDefinedFileAttributeView for AIX

I tested the UserDefinedAttributesView on AIX. For me symlinks seem to be not supported, bat that is OK as mentioned.

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Marked as reviewed by jkern (Committer).

PR Review: https://git.openjdk.org/jdk/pull/24276#pullrequestreview-2739710329