8357797: Use StructuredTaskScopeImpl.ST_NEW for state init

[shipilev]

SonarCloud complains ST_NEW constant is not used. Looks to me the constructor implicitly relies on default value for state. It would be cleaner to initialize it explicitly

Additional testing:

• Linux x86_64 server fastdebug, java/util/concurrent

---

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Issue

• JDK-8357797: Use StructuredTaskScopeImpl.ST_NEW for state init (Enhancement - P4)

Reviewers

• Alan Bateman (@AlanBateman - Reviewer)

Reviewing

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[openjdk]

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

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

8357797: Use StructuredTaskScopeImpl.ST_NEW for state init

Reviewed-by: alanb

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At the time when this comment was updated there had been 5 new commits pushed to the master branch:

• a300c35: 8357105: C2: compilation fails with "assert(false) failed: empty program detected during loop optimization"
• bd09589: 8356632: Fix remaining {@link/@linkplain} tags with refer to private/protected types in java.base
• daa8eda: 8357056: RISC-V: Asm fixes - load/store width
• ... and 2 more: https://git.openjdk.org/jdk/compare/ed4cd2acd2d8bb92c296c5a860c76cffaff53add...master

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[mlbridge]

Webrevs

• 01: Full - Incremental (9518cb62)
• 00: Full (711a3474)

[shipilev]

Looks simple enough to me, and unlikely to cause conflicts/problems, so I am integrating now.

/integrate

[openjdk]

Going to push as commit b9db99d.
Since your change was applied there have been 16 commits pushed to the master branch:

• aea32ec: 8357647: Stream gatherers forward upstream size information to downstream
• f62b978: 8357448: AOT crashes on linux musl with AddReads.java
• 7cb6e5e: 8353124: java/lang/Thread/virtual/stress/Skynet.java#Z times out on macosx-x64-debug
• ... and 13 more: https://git.openjdk.org/jdk/compare/ed4cd2acd2d8bb92c296c5a860c76cffaff53add...master

Your commit was automatically rebased without conflicts.

[openjdk]

@shipilev Pushed as commit b9db99d.

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