RFR: JDK-8263558: Possible NULL dereference in fast path arena free if ZapResourceArea is true [v4]

[Coleen Phillimore]

On Mon, 15 Mar 2021 06:13:25 GMT, Thomas Stuefe <stuefe at openjdk.org> wrote:

>> Sonarcloud reports a possible NULL dereference when zapping the to-be-freed area in fast-path arena free. Possible call stack for this to happen starts in Node::destruct(PhaseValues* phase).
>
> Thomas Stuefe has updated the pull request incrementally with one additional commit since the last revision:
> 
>   just the assert

Looks good.

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Marked as reviewed by coleenp (Reviewer).

PR: https://git.openjdk.java.net/jdk/pull/2995