8370966: Create regression test for the hierarchical memory limit fix in JDK-8370572

[jerboaa]

Please review this test-only enhancement. It creates a regression test for the Amazon ECS setup on cgroups v1 where the parent memory limit isn't visible inside the container and, thus, needs to rely on the cg v1 specific hierarchical_memory_limit token in memory.stat. The proposed test is cg v1 only and needs to be run as root. It's skipped otherwise. It's useful to have when working on refactorings like #27743 so as not to regress.

The other changes are an effort to reduce code duplication in the test code where similar patterns have been used in other container tests.

Testing (all on Linux x86_64):

• CG version 2, run as root. Engine: docker. Test is skipped.
• CG version 1, run as root. Engine: docker. Test passes and fails without the product fix of JDK-8370572
• CG version 1, run as root. Engine: podman. Test passes and fails without the product fix of JDK-8370572
• CG version 1, run as non-root. Test skipped.
• GHA, though I don't think this is very useful for this change.

Thoughts?

---

Progress

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Issue

• JDK-8370966: Create regression test for the hierarchical memory limit fix in JDK-8370572 (Enhancement - P4)

Reviewers

• Aleksey Shipilev (@shipilev - Reviewer)
• SendaoYan (@sendaoYan - Committer)

Reviewing

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Checkout this PR locally:
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$ git checkout pull/28201

Update a local copy of the PR:
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$ git pull https://git.openjdk.org/jdk.git pull/28201/head

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$ git pr checkout 28201

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https://git.openjdk.org/jdk/pull/28201.diff

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[openjdk]

@jerboaa 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:

8370966: Create regression test for the hierarchical memory limit fix in JDK-8370572 Reviewed-by: shade, syan 

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At the time when this comment was updated there had been 34 new commits pushed to the master branch:

• 43afce5: 8371573: Shenandoah: Remove unnecessary include after JDK-8351091
• cc54d2c: 8371418: Methods in AdapterHandlerLibrary use HashtableBase iterate method incorrectly
• 8a911ae: 8371471: HttpClient: Log HTTP/3 handshake failures if logging errors is enabled
• ... and 31 more: https://git.openjdk.org/jdk/compare/d5803aa78a84caccd5c3f14ac788817c5a3b4725...master

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[openjdk]

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[mlbridge]

Webrevs

• 01: Full - Incremental (faeff2a1)
• 00: Full (86f8e1b8)

[shipilev]

Looks fine, a few nits.

[jerboaa]

Thanks for the reviews. Updated the patch.

[shipilev]

Still good.

[sendaoYan]

The touch tests and new tests run passed on my local machine.