8273487: Zero: Handle "zero" variant in runtime tests

[shipilev]

Clean backport to fix a few other tier1 tests for Zero.

Addtional testing:

• Linux x86_64 Zero affected tests (StackGap, StackGuardPages, TestTLS) now pass

---

Progress

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

Issue

• JDK-8273487: Zero: Handle "zero" variant in runtime tests

Reviewing

Using git

Checkout this PR locally:
$ git fetch https://git.openjdk.java.net/jdk17u pull/147/head:pull/147
$ git checkout pull/147

Update a local copy of the PR:
$ git checkout pull/147
$ git pull https://git.openjdk.java.net/jdk17u pull/147/head

Using Skara CLI tools

Checkout this PR locally:
$ git pr checkout 147

View PR using the GUI difftool:
$ git pr show -t 147

Using diff file

Download this PR as a diff file:
https://git.openjdk.java.net/jdk17u/pull/147.diff

[bridgekeeper]

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[openjdk]

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

[openjdk]

@shipilev 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:

8273487: Zero: Handle "zero" variant in runtime tests

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[mlbridge]

Webrevs

• 00: Full (e22fd28c)

[shipilev]

Got the push approval.

/integrate

[openjdk]

Going to push as commit 09370c3.
Since your change was applied there have been 3 commits pushed to the master branch:

• 328358a: 8274349: ForkJoinPool.commonPool() does not work with 1 CPU
• 5e90da9: 8274083: Update testing docs to mention tiered testing
• 973911e: 8273314: Add tier4 test groups

Your commit was automatically rebased without conflicts.

[openjdk]

@shipilev Pushed as commit 09370c3.

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