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Check for type pollution - can have a major performance impact

Open pjfanning opened this issue 1 year ago • 1 comments

Check for type pollution - can have a major performance impact. Basically, Java Runtime up to v23 has an issue in a secondary cache used internally to track results of instanceof checks.

https://bugs.openjdk.org/browse/JDK-8180450

https://github.com/FasterXML/jackson-databind/pull/4848

See the micronaut utility mentioned in the issue description.

It may also be useful to check pekko-http.

pjfanning avatar Jan 03 '25 13:01 pjfanning

Tools: https://github.com/RedHatPerf/type-pollution-agent

He-Pin avatar Jan 03 '25 13:01 He-Pin