RFR: 8262895: [macos_aarch64] runtime/CompressedOops/CompressedClassPointers.java fails with 'Narrow klass base: 0x0000000000000000' missing from stdout/stderr [v2]

[David Holmes]

On Thu, 23 Feb 2023 16:27:33 GMT, Matias Saavedra Silva <matsaave at openjdk.org> wrote:

>> The test runtime/CompressedOops/CompressedClassPointers.java does not reliably pass on Mac OSX on either x86 or aarch64, so it is disabled for that platform.
>
> Matias Saavedra Silva has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Improved comment

A couple of nits but approved in advance. Thanks.

test/hotspot/jtreg/runtime/CompressedOops/CompressedClassPointers.java line 28:

> 26:  * @bug 8024927
> 27:  * @summary Testing address of compressed class pointer space as best as possible.
> 28:  * @comment Testing compressed class pointers without compressed oops is not possible

Nit: comment could go immediately before the `@requires os.family != mac`

test/hotspot/jtreg/runtime/CompressedOops/CompressedClassPointers.java line 29:

> 27:  * @summary Testing address of compressed class pointer space as best as possible.
> 28:  * @comment Testing compressed class pointers without compressed oops is not possible
> 29:             on MacOS because the heap is given an  arbitrary address that occasionally

Nit: extra space after `an`

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Marked as reviewed by dholmes (Reviewer).

PR: https://git.openjdk.org/jdk/pull/12234