8267953: restore 'volatile' to ObjectMonitor::_owner field

[dcubed-ojdk]

A trivial fix to restore 'volatile' to ObjectMonitor::_owner field.

This fix was tested with a Mach5 Tier job set.

---

Progress

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Issue

• JDK-8267953: restore 'volatile' to ObjectMonitor::_owner field

Reviewers

• Andrew Haley (@theRealAph - Reviewer)

Reviewing

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[dcubed-ojdk]

/label add hotspot-runtime

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[openjdk]

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The hotspot-runtime label was successfully added.

[mlbridge]

Webrevs

• 00: Full (cba76bce)

[theRealAph]

Yes. I very much approve.

[openjdk]

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

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

8267953: restore 'volatile' to ObjectMonitor::_owner field

Reviewed-by: aph

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[dcubed-ojdk]

@theRealAph - Thanks for the review!

/integrate

[openjdk]

@dcubed-ojdk Pushed as commit 6627432.

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