8356266: Fix non-Shenandoah build after JDK-8356075

[rkennke]

JDK-8356075 (see PR #25001) causes builds without Shenandoah GC to fail. It's missing an #if INCLUDE_SHENANDOAHGC.

Testing:

• Build without Shenandoah GC

---

Progress

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Issue

• JDK-8356266: Fix non-Shenandoah build after JDK-8356075 (Bug - P3)

Reviewers

• Doug Simon (@dougxc - Reviewer)
• Aleksey Shipilev (@shipilev - Reviewer)

Reviewing

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[openjdk]

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

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8356266: Fix non-Shenandoah build after JDK-8356075

Reviewed-by: dnsimon, shade

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[openjdk]

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[mlbridge]

Webrevs

• 00: Full (c8eef9c1)

[rkennke]

Thanks, @dougxc! Is this trivial? Can I push this right away to fix the build?

[rkennke]

Some GHA failures - they look unrelated.

[shipilev]

Ah yes. Trivial.

[rkennke]

Thanks!

/integrate

[openjdk]

Going to push as commit bfdafb7.

[openjdk]

@rkennke Pushed as commit bfdafb7.

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