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

[Rui Li]

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.

This pull request has now been integrated.

Changeset: 6f11d32a
Author:    Rui Li <ruiamzn at amazon.com>
Committer: Paul Hohensee <phh at openjdk.org>
URL:       https://git.openjdk.org/jdk21u-dev/commit/6f11d32a0cefb59e3890e2627f473db1cc804133
Stats:     23 lines in 1 file changed: 6 ins; 0 del; 17 mod

8346142: [perf] scalability issue for the specjvm2008::xml.validation workload

Backport-of: 10d08dbc81aa14499410f0a7a64d0b3243b660f1

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PR: https://git.openjdk.org/jdk21u-dev/pull/2175