RFR: 8267185: Add string deduplication support to ParallelGC [v6]

[Ivan Walulya]

On Fri, 20 Aug 2021 10:09:58 GMT, Albert Mingkun Yang <ayang at openjdk.org> wrote:

>> Ivan Walulya has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   more clean up
>
> Marked as reviewed by ayang (Committer).

Thanks @albertnetymk and @kimbarrett for the reviews!

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PR: https://git.openjdk.java.net/jdk/pull/5085