RFR: 8259668: Make SubTasksDone use-once [v3]

[Albert Mingkun Yang]

On Tue, 16 Feb 2021 06:19:13 GMT, Kim Barrett <kbarrett at openjdk.org> wrote:

>> Albert Mingkun Yang has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   review
>
> I would prefer to see all_tasks_claimed eliminated rather than made more
> precise at the expense of being more complicated. I think the added
> precision doesn't provide enough benefit (vs alternatives like checking once
> in the destructor) to pay the API, usage, and implementation cost. But
> that's matter of opinion, about which Albert feels to the contrary. I think
> this change is an improvement regardless of that question, so won't block on
> that basis.
> 
> So looks good.

Thanks for the review.

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PR: https://git.openjdk.java.net/jdk/pull/2383