use convertValue instead of treeToValue(TypeReference) for Jackson < 2.16 compatibility#1250
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TimothyJones merged 3 commits intocase-contract-testing:mainfrom Feb 12, 2026
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…< 2.16 compat ObjectMapper.treeToValue(TreeNode, TypeReference) was added in Jackson 2.16.0 (FasterXML/jackson-databind#4046). Projects using Jackson 2.15.x get a NoSuchMethodError at runtime. This replaces it with the equivalent readValue(JsonParser, TypeReference) pattern which works with older versions.
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Thanks for this! Would mapper.convertValue work for you here? It looks like it still existed back in 2.15.3:
That way we wouldn't have to do the re-serialisaiton - which would be good as this part of the code gets hot when there are a lot of contracts.
…on < 2.16 compat Per maintainer feedback, use convertValue instead of readValue+traverse to avoid re-serialisation overhead on hot path.
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Yes, that works too. Updated |
Shaowen-Xiang
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Awesome, I'll get this merged and released today |
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Thanks again! |
TimothyJones
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Feb 12, 2026
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Problem
ObjectMapper.treeToValue(TreeNode, TypeReference)was added in Jackson 2.16.0 (FasterXML/jackson-databind#4056). Projects that use Jackson 2.15.x get aNoSuchMethodErrorat runtime when callingprepareVerificationFix
Replaced
mapper.treeToValue(node, TypeReference)with the equivalentmapper.convertValueinVerifierResultMapper.toVerificationHandle(). This achieves the same result but works with Jackson 2.15.x and earlier.Testing
./gradlew test)NoSuchMethodErrorin a downstream project using Jackson 2.15.x