8284977: MetricsTesterCgroupV2.getLongValueEntryFromFile fails when named value doesn't exist

[kurashige23]

Hi all,

I'd like to backport this to jdk8u-dev.
It fixes a test failure caused by cgroups virtual files (nr_periods etc) not existing in some circumstances.

Thanks.

---

Progress

• Change must not contain extraneous whitespace
• Commit message must refer to an issue

Issue

• JDK-8284977: MetricsTesterCgroupV2.getLongValueEntryFromFile fails when named value doesn't exist

Reviewing

Using git

Checkout this PR locally:
$ git fetch https://git.openjdk.org/jdk8u-dev pull/215/head:pull/215
$ git checkout pull/215

Update a local copy of the PR:
$ git checkout pull/215
$ git pull https://git.openjdk.org/jdk8u-dev pull/215/head

Using Skara CLI tools

Checkout this PR locally:
$ git pr checkout 215

View PR using the GUI difftool:
$ git pr show -t 215

Using diff file

Download this PR as a diff file:
https://git.openjdk.org/jdk8u-dev/pull/215.diff

[bridgekeeper]

👋 Welcome back kurashige23! A progress list of the required criteria for merging this PR into master will be added to the body of your pull request. There are additional pull request commands available for use with this pull request.

[mlbridge]

Webrevs

• 01: Full - Incremental (4bbc576b)
• 00: Full (3bcfa1d5)

[jerboaa]

@kurashige23 Please change the PR title to Backport 444a0d98ac06ab043e3b11281234fd515abff302 as that would make the bots recognize this properly as a backport. Thanks! Please also enable GHA testing on your fork. Instructions should be provided as to how to do that.

[openjdk]

This backport pull request has now been updated with issue from the original commit.

[kurashige23]

@jerboaa I'm sorry for some mistakes. I fixed PR title and enabled GHA testing. Is that all right?

[jerboaa]

Clean backport (only path changes). Marking as such.

/clean

[openjdk]

@jerboaa This backport pull request is now marked as clean

[jerboaa]

@kurashige23 Please proceed with applying for JDK 8u backports approval as described in Contributing section here:
https://wiki.openjdk.org/display/jdk8u

[openjdk]

⚠️ @kurashige23 the full name on your profile does not match the author name in this pull requests' HEAD commit. If this pull request gets integrated then the author name from this pull requests' HEAD commit will be used for the resulting commit. If you wish to push a new commit with a different author name, then please run the following commands in a local repository of your personal fork:

$ git checkout kurashige23-backport-444a0d98
$ git commit --author='Preferred Full Name <you@example.com>' --allow-empty -m 'Update full name'
$ git push

[openjdk]

@kurashige23 This change now passes all automated pre-integration checks.

After integration, the commit message for the final commit will be:

8284977: MetricsTesterCgroupV2.getLongValueEntryFromFile fails when named value doesn't exist

You can use pull request commands such as /summary, /contributor and /issue to adjust it as needed.

At the time when this comment was updated there had been no new commits pushed to the master branch. If another commit should be pushed before you perform the /integrate command, your PR will be automatically rebased. If you prefer to avoid any potential automatic rebasing, please check the documentation for the /integrate command for further details.

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➡️ To flag this PR as ready for integration with the above commit message, type /integrate in a new comment. (Afterwards, your sponsor types /sponsor in a new comment to perform the integration).

[kurashige23]

@jerboaa Thank you for giving the link.
Should I add the 'jdk8u-fix-request' label? But I don't have access to the OpenJDK bug system. If possible, Could you please add a label for me?

[jerboaa]

Should I add the 'jdk8u-fix-request' label? But I don't have access to the OpenJDK bug system. If possible, Could you please add a label for me?

Yes. I've added them for you and approved as it's a test-only bug. Feel free to integrate.

[kurashige23]

/integrate

[openjdk]

@kurashige23
Your change (at version 4bbc576) is now ready to be sponsored by a Committer.

[jerboaa]

/sponsor

[openjdk]

Going to push as commit b4a745d.

[openjdk]

@jerboaa @kurashige23 Pushed as commit b4a745d.

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