[jdk21u-dev] RFR: 8346142: [perf] scalability issue for the specjvm2008::xml.validation workload

[duke]

On Thu, 11 Sep 2025 01:36:01 GMT, Rui Li <duke at openjdk.org> wrote:

> A clean backport for https://bugs.openjdk.org/browse/JDK-8346142
> 
> A perf patch: it adds low cost null prechecks to prevent the flow entering slow synchronized block unnecessarily.
> 
> In tip for about 8 months, no issues so far. Low risks.

@rgithubli 
Your change (at version 2af4ae1b433cc55feaf648e86a897772ff9df08b) is now ready to be sponsored by a Committer.

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PR Comment: https://git.openjdk.org/jdk21u-dev/pull/2175#issuecomment-3281951313