RFR: 8338236: Compile error in cgroup code on Linux when using clang

[Stefan Karlsson]

On Wed, 14 Aug 2024 06:36:02 GMT, Matthias Baesken <mbaesken at openjdk.org> wrote:

> > I wonder why it only complains about those 2 files. Aren't there more?
> 
> No more were found. Probably at those 3 locations in the code we have the special case, that they are not already covered by clang/macOS because it is Linux-only code.

It's not clear to me if you noticed that this warns about the "inconsistent" usage of `override`. It doesn't warn about using `override`. Some of the overridden functions where marked with `override` but not all. You can silence this warning by either doing what you did in this PR, or by removing the previously added `override` in those classes.

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PR Comment: https://git.openjdk.org/jdk/pull/20562#issuecomment-2288659469