RFR: 8329764: G1: Handle null references during verification first [v2]

[Thomas Schatzl]

On Mon, 8 Apr 2024 12:37:10 GMT, Stefan Karlsson <stefank at openjdk.org> wrote:

>> Thomas Schatzl has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase.
>
> I've opened #18677 for the null-check and failure counting.

thanks @stefank @walulyai for your reviews

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PR Comment: https://git.openjdk.org/jdk/pull/18650#issuecomment-2056838643