8310645: CancelledResponse.java does not use HTTP/2 when testing the HttpClient

[rm-gh-8]

Backporting JDK-8310645: CancelledResponse.java does not use HTTP/2 when testing the HttpClient.

This PR adds an HTTP/2 test for cancelling a BodySubscriber while receiving data.

For parity with Oracle JDK.

Ran related tests on linux-x64, linux-aarch64, macos-aarch64 and windows-x64:

make test TEST=test/jdk/java/net/httpclient/CancelledResponse2.java

Results:

windows-x64-specific-test.log
macos-aarch64-specific-test.log
linux-x64-specific-test.log
linux-aarch64-specific-test.log

---

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---

Progress

• Change must not contain extraneous whitespace
• JDK-8310645 needs maintainer approval
• Commit message must refer to an issue

Issue

• JDK-8310645: CancelledResponse.java does not use HTTP/2 when testing the HttpClient (Bug - P4 - Requested)

Reviewing

Using git

Checkout this PR locally:
$ git fetch https://git.openjdk.org/jdk21u-dev.git pull/2888/head:pull/2888
$ git checkout pull/2888

Update a local copy of the PR:
$ git checkout pull/2888
$ git pull https://git.openjdk.org/jdk21u-dev.git pull/2888/head

Using Skara CLI tools

Checkout this PR locally:
$ git pr checkout 2888

View PR using the GUI difftool:
$ git pr show -t 2888

Using diff file

Download this PR as a diff file:
https://git.openjdk.org/jdk21u-dev/pull/2888.diff

Using Webrev

Link to Webrev Comment

[bridgekeeper]

👋 Welcome back rmesde! 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.

[openjdk]

⚠️ @rm-gh-8 This change is now ready for you to apply for maintainer approval. This can be done directly in each associated issue or by using the /approval command.

[mlbridge]

Webrevs

• 00: Full (0c8989d9)

[rm-gh-8]

/approval request for backport of JDK-8310645: CancelledResponse.java does not use HTTP/2 when testing the HttpClient.

This is a test fix.

For parity with Oracle JDK.

[openjdk]

@rm-gh-8
8310645: The approval request has been created successfully.