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Add Support for Jackson 3 (#742)

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This change adds Jackson 3 support and aligns package naming in the existing Jackson 2 module.

Specific changes:
* Deprecated classes for removal in `io.modelcontextprotocol.json.jackson`/`io.modelcontextprotocol.json.schema.jackson`
* Copied the above to `io.modelcontextprotocol.json.jackson2`/`io.modelcontextprotocol.json.schema.jackson2` in non-deprecated form.
* Added tests for the default McpJsonMapper and JsonSchemaValidator
This commit is contained in:
Filip Hrisafov 2026-01-26 11:43:35 +01:00 • committed by GitHub
commit 2456a0e433
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1 changed files with 2487 additions and 21 deletions
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mcp-json-jackson3/pom.xml Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>io.modelcontextprotocol.sdk</groupId>
<artifactId>mcp-parent</artifactId>
<version>0.18.0-SNAPSHOT</version>
</parent>
<artifactId>mcp-json-jackson3</artifactId>
<packaging>jar</packaging>
<name>Java MCP SDK JSON Jackson</name>
<description>Java MCP SDK JSON implementation based on Jackson 3</description>
<url>https://github.com/modelcontextprotocol/java-sdk</url>
<scm>
<url>https://github.com/modelcontextprotocol/java-sdk</url>
<connection>git://github.com/modelcontextprotocol/java-sdk.git</connection>
<developerConnection>git@github.com/modelcontextprotocol/java-sdk.git</developerConnection>
</scm>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-jar-plugin</artifactId>
<configuration>
<archive>
<manifest>
<addDefaultImplementationEntries>true</addDefaultImplementationEntries>
</manifest>
</archive>
</configuration>
</plugin>
</plugins>
</build>
<dependencies>
<dependency>
<groupId>io.modelcontextprotocol.sdk</groupId>
<artifactId>mcp-json</artifactId>
<version>0.18.0-SNAPSHOT</version>
</dependency>
<dependency>
<groupId>tools.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>${jackson3.version}</version>
</dependency>
<dependency>
<groupId>com.networknt</groupId>
<artifactId>json-schema-validator</artifactId>
<version>${json-schema-validator-jackson3.version}</version>
</dependency>
<dependency>
<groupId>org.assertj</groupId>
<artifactId>assertj-core</artifactId>
<version>${assert4j.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.junit.jupiter</groupId>
<artifactId>junit-jupiter-api</artifactId>
<version>${junit.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.junit.jupiter</groupId>
<artifactId>junit-jupiter-params</artifactId>
<version>${junit.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.mockito</groupId>
<artifactId>mockito-core</artifactId>
<version>${mockito.version}</version>
<scope>test</scope>
</dependency>
</dependencies>
</project>