RFR: 8301637: ThreadLocalRandom.current().doubles().parallel() contention

[kabutz]

On Wed, 1 Feb 2023 15:51:33 GMT, kabutz <duke at openjdk.org> wrote:

> ThreadLocalRandom.current().doubles().parallel() had a bad regression, because it called the superclass methods of the ThreadLocalRandomProxy's nextDouble() method instead of delegating to the ThreadLocalRandom.current().
> 
> Affects all versions of ThreadLocalRandom since Java 17.

Could this fix be back-ported to JDK 17? It's been an issue from then until now.

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PR: https://git.openjdk.org/jdk/pull/12366