RFR: 8275049: [ZGC] missing null check in ZNMethod::log_register [v2]

[Erik Österlund]

On Tue, 12 Oct 2021 15:21:15 GMT, Martin Doerr <mdoerr at openjdk.org> wrote:

>> The VM crashes while trying to read (*p)->klass() in "ZNMethod::log_register" on PPC64. We need a null check. See JBS for details.
>
> Martin Doerr has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Use Atomic::load to read the oop and change klass name to N/A in case of null oop.

Looks good.

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Marked as reviewed by eosterlund (Reviewer).

PR: https://git.openjdk.java.net/jdk/pull/5892