RFR: 8291555: Implement alternative fast-locking scheme [v72]

[David Holmes]

On Thu, 4 May 2023 22:11:56 GMT, Daniel D. Daugherty <dcubed at openjdk.org> wrote:

>> Roman Kennke has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   Address @dcubed-ojdk review comments
>
> I have a Tier3 test failure:
> https://bugs.openjdk.org/browse/JDK-8291555?focusedCommentId=14579239&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-14579239

It would be good to get @dcubed-ojdk 's final thumbs-up on testing first. And perhaps not a good idea to integrate at the end of the week just in case anything goes wrong. :)

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PR Comment: https://git.openjdk.org/jdk/pull/10907#issuecomment-1535781897