8271624: Avoid unnecessary ThreadGroup.checkAccess calls when creating Threads

[cl4es]

Trivially avoid some redundant calls when creating threads. (ThreadGroup.checkAccess is final, and all it does is call security.checkAccess(g) if there's a SM installed)

---

Progress

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Issue

• JDK-8271624: Avoid unnecessary ThreadGroup.checkAccess calls when creating Threads

Reviewers

• Roger Riggs (@RogerRiggs - Reviewer)

Reviewing

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[openjdk]

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[mlbridge]

Webrevs

• 00: Full (361c72ab)

[RogerRiggs]

LGTM

[openjdk]

@cl4es This change now passes all automated pre-integration checks.

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

8271624: Avoid unnecessary ThreadGroup.checkAccess calls when creating Threads

Reviewed-by: rriggs

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[cl4es]

Thanks again @RogerRiggs!

/integrate

[openjdk]

Going to push as commit 0b95394.
Since your change was applied there has been 1 commit pushed to the master branch:

• e621cff: 8271627: Use local field access in favor of Class.getClassLoader0

Your commit was automatically rebased without conflicts.

[openjdk]

@cl4es Pushed as commit 0b95394.

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