8314136: Test java/net/httpclient/CancelRequestTest.java failed: WARNING: tracker for HttpClientImpl(42) has outstanding operations

[GoeLin]

I backport this for parity with 17.0.18-oracle.

Clean backport, but need to adapt as HttpClient does not implement
AutoClosable in 17.
Omitted calls to close, test is run as othervm.

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Progress

• Change must be properly reviewed (1 review required, with at least 1 Reviewer)
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• Commit message must refer to an issue
• JDK-8314136 needs maintainer approval

Issue

• JDK-8314136: Test java/net/httpclient/CancelRequestTest.java failed: WARNING: tracker for HttpClientImpl(42) has outstanding operations (Bug - P4)

Reviewing

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$ git checkout pull/4109

Update a local copy of the PR:
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$ git pull https://git.openjdk.org/jdk17u-dev.git pull/4109/head

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[bridgekeeper]

👋 Welcome back goetz! 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 change is not yet ready to be integrated.
See the Progress checklist in the description for automated requirements.

[openjdk]

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

[mlbridge]

Webrevs

• 02: Full - Incremental (f7610383)
• 01: Full - Incremental (4b6806f6)
• 00: Full (4b6806f6)

[GoeLin]

GHA failure: test java/lang/ProcessBuilder/Basic#id0 failed. Unrelated.

[GoeLin]

GHA failure: java/lang/ProcessBuilder/Basic#id0 failed. Unrelated.
Might be fixed by #4097

[openjdk-notifier]

The parent pull request that this pull request depends on has now been integrated and the target branch of this pull request has been updated. This means that changes from the dependent pull request can start to show up as belonging to this pull request, which may be confusing for reviewers. To remedy this situation, simply merge the latest changes from the new target branch into this pull request by running commands similar to these in the local repository for your personal fork:

git checkout goetz_backport_8314136
git fetch https://git.openjdk.org/jdk17u-dev.git master
git merge FETCH_HEAD
# if there are conflicts, follow the instructions given by git merge
git commit -m "Merge master"
git push