RFR: 8311902: Concurrency regression in the PBKDF2 key impl of SunJCE provider

[Anthony Scarpino]

On Thu, 13 Jul 2023 02:46:10 GMT, Valerie Peng <valeriep at openjdk.org> wrote:

> This change adds back the Reference.ReachabilityFence(Object) call removed by [JDK-8301553](https://bugs.openjdk.org/browse/JDK-8301553).
> 
> Please help review.
> Thanks!
> Valerie

Looks good to me

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Marked as reviewed by ascarpino (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/14859#pullrequestreview-1527528956