Support for Jackson 3 #166

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1. kz282 commented on Dec 15, 2025

   

   kz282

   on Dec 15, 2025

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   Please see #165
2. christophejan commented on Dec 28, 2025

   

   christophejan

   on Dec 28, 2025

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   Hello,

   I was looking for a Jackson 3 compatible version and found that Jackson provides its own support of JsonPatch and JsonMergePatch since Jackson 2.12.2.

   See :

   • Support for JsonPatch and JsonMergePatch defined in JSON-P 1.1 #13
   • jackson-datatypes-misc
   • jackson-datatypes-misc>jakarta-jsonp

   Even diff seems supported through Json#createDiff and Json#createMergeDiff.

   I think I will try to switch to this Jackson module for JsonPatch and JsonMergePatch.

   👍React with 👍1Reacted by David Gerber
3. anandjaisy commented on Jan 6, 2026

   

   anandjaisy

   on Jan 6, 2026

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   Is this getting merge ?? with spring 7 and spring boot 4 keep facing the issue as

   Caused by: tools.jackson.databind.exc.InvalidDefinitionException: Cannot construct instance of com.fasterxml.jackson.databind.JsonNode (no Creators, like default constructor, exist): abstract types either need to be mapped to concrete types, have custom deserializer, or contain additional type information
4. zapek commented on Jan 6, 2026

   

   zapek

   on Jan 6, 2026

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   I think I will try to switch to this Jackson module for JsonPatch and JsonMergePatch.

   Thanks for the suggestion, it actually works! Here's what I did with Spring Boot 4 (don't forget to use Jackson 3 only, not Jackson 2):

   Add dependencies:

   implementation 'tools.jackson.datatype:jackson-datatype-jakarta-jsonp'
   runtimeOnly 'org.leadpony.joy:joy-classic:2.1.0' // JSON-P implementation
   

   To get a patch:

   JsonValue JsonValue.class);
   JsonValue source = objectMapper.convertValue(from, JsonValue.class);
   JsonPatch patch = Json.createDiff(source.asJsonObject(), target.asJsonObject());
   

   To apply the patch:

   JsonValue source = objectMapper.convertValue(from, JsonValue.class);
   JsonObject patched = jsonPatch.apply(source.asJsonObject());
   

   No need for java-json-tools.
5. stephenmontgomery commented on Mar 1, 2026

   

   stephenmontgomery

   on Mar 1, 2026

   Last edited by stephenmontgomery

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   @zapek just to be clear - ur solution is not a pure jackson solution (which would be ideal as I'm on Spring Boot) - you still need 2 new dependencies (jackson-datatype-jakarta-jsonp - jackson bridge onto JSONP provider and the JSONP provider ie joy-classic/parsson etc) so really swapping a library for 2 new ones. 3 if u include jakarta.json-api.

   I did use ur instructions as a guide and got a Jackson 2 equivalent working but really it's in preparation for upgrading to SB4/Jackson 3.

   Maybe https://flipkart-incubator.github.io/zjsonpatch/ is a best drop in replacement for java-json-tools?
6. edmundackah commented on Mar 14, 2026

   

   edmundackah

   on Mar 14, 2026

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   @zapek @kz282 @stephenmontgomery @pbartoszek @christophejan

   I’ve created a library that follows this API but brings in support for Jackson 3. It’s designed as a drop-in replacement for anyone needing to upgrade. I'm currently running it in production for a high-volume payment gateway, so performance and reliability are baked in. Check out the docs here: https://guisseppe.gitlab.io/json-utils/getting-started

   👍React with 👍1Reacted by Andy Vernon (verno)