[jdk20] RFR: 8300275: SegmentScope.isAccessibleBy returning incorrect values

[Alan Bateman]

On Tue, 17 Jan 2023 18:30:16 GMT, Maurizio Cimadamore <mcimadamore at openjdk.org> wrote:

> The implementation of MemorySessionImpl::isAccessibleBy is incorrect, and ends up always returning `false` for scopes associated with shared arenas.
> This patch rectifies that, and adds some tests.

Looks okay to me, surprised it slipped through. You probably need to update the end copyright date before integrating.

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Marked as reviewed by alanb (Reviewer).

PR: https://git.openjdk.org/jdk20/pull/110