[foreign-memaccess+abi] RFR: Fix issue in custom arena code

Fri Mar 17 00:56:49 UTC 2023

On Fri, 17 Mar 2023 00:34:42 GMT, Maurizio Cimadamore <mcimadamore at openjdk.org> wrote:

> I realized there are few issues with the custom arena code which has been added in the `Arena` javadoc as part of https://git.openjdk.org/panama-foreign/pull/821.

Oh... I didn't notice these either

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Marked as reviewed by jvernee (Committer).

PR: https://git.openjdk.org/panama-foreign/pull/822