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

[MBaesken]

---

Progress

• Change must not contain extraneous whitespace
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Issue

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

Reviewing

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Checkout this PR locally:
$ git fetch https://git.openjdk.org/jdk17u-dev pull/532/head:pull/532
$ git checkout pull/532

Update a local copy of the PR:
$ git checkout pull/532
$ git pull https://git.openjdk.org/jdk17u-dev pull/532/head

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$ git pr checkout 532

View PR using the GUI difftool:
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Download this PR as a diff file:
https://git.openjdk.org/jdk17u-dev/pull/532.diff

[bridgekeeper]

👋 Welcome back mbaesken! 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.

[openjdk]

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

[openjdk]

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

ℹ️ This project also has non-automated pre-integration requirements. Please see the file CONTRIBUTING.md for details.

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

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

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[mlbridge]

Webrevs

• 00: Full (2d266cfd)

[MBaesken]

/integrate

[openjdk]

Going to push as commit 3ad1445.
Since your change was applied there have been 3 commits pushed to the master branch:

• ab90ac3: 8287735: Provide separate event category for dll operations
• 363a8ff: 8286277: CDS VerifyError when calling clone() on object array
• 01217e1: 8289569: [test] java/lang/ProcessBuilder/Basic.java fails on Alpine/musl

Your commit was automatically rebased without conflicts.

[openjdk]

@MBaesken Pushed as commit 3ad1445.

💡 You may see a message that your pull request was closed with unmerged commits. This can be safely ignored.