RFR: 8292969: Bad Thread Utilization in ForkJoinPool

[Martin Buchholz]

On Wed, 7 Sep 2022 12:44:11 GMT, Doug Lea <dl at openjdk.org> wrote:

> 8292969: This small change in signal propagation rules improves utilization when entry queues are resized,

scan's @return needs to be changed to indicate it also now returns a packed int

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Changes requested by martin (Reviewer).

PR: https://git.openjdk.org/jdk/pull/10198