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Add json-columns module: JSON columns in Hibernate 7.4.14 (@JdbcTypeCode(SqlTypes.JSON)), JSONB querying, GIN/expression indexes, dirty checking, Jackson 3 vs 2 on PostgreSQL 18.6 and MySQL 8.0.46

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Co-Authored-By: Claude Sonnet 5.5 <[email protected]>
Claude-Session: https://claude.ai/code/session_017ic4b6Kg9RWSTJzyz6KP9X
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Claude
2026-10-30 17:00:46 +00:00
parent 98f4ed7411
commit b83cc9988e
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json-columns/pom.xml
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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>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>4.1.2</version>
<relativePath/>
</parent>
<groupId>com.ankurm</groupId>
<artifactId>json-columns</artifactId>
<version>1.0.0</version>
<name>json-columns</name>
<description>JSON columns in Hibernate 7: @JdbcTypeCode(SqlTypes.JSON) on PostgreSQL 18 and MySQL 8.0, JSONB queries, indexing, dirty checking, format mappers</description>
<properties>
<java.version>25</java.version>
<!-- Boot 4.1.2 manages 7.4.13.Final; this module overrides to the newest 7.x GA on Maven Central (checked 2026-10-30). -->
<hibernate.version>7.4.14.Final</hibernate.version>
<jackson2.version>2.22.4</jackson2.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<!-- Boot's JSON starter: provides the JsonMapper bean A11 compares with Hibernate's. -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-jackson</artifactId>
</dependency>
<!-- Jackson 3 (tools.jackson), the one Spring Boot 4 puts on the classpath. -->
<dependency>
<groupId>tools.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
</dependency>
<dependency>
<groupId>org.postgresql</groupId>
<artifactId>postgresql</artifactId>
</dependency>
<dependency>
<groupId>com.mysql</groupId>
<artifactId>mysql-connector-j</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<profiles>
<!-- Adds Jackson 2 next to Jackson 3: which FormatMapper does Hibernate pick when both are present? -->
<profile>
<id>jackson2</id>
<dependencies>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>${jackson2.version}</version>
</dependency>
</dependencies>
</profile>
<!-- jackson-datatype-jsr310 for Jackson 2: the module Jackson 2 needs before java.time types work. -->
<profile>
<id>jsr310</id>
<dependencies>
<dependency>
<groupId>com.fasterxml.jackson.datatype</groupId>
<artifactId>jackson-datatype-jsr310</artifactId>
<version>${jackson2.version}</version>
</dependency>
</dependencies>
</profile>
<!-- hypersistence-utils: only to check whether its JsonType still works on Hibernate 7.4 and what it does to FormatMapper selection.
Its test class lives in src/hypersistence-test so the default build does not need the jar. -->
<profile>
<id>hypersistence</id>
<dependencies>
<dependency>
<groupId>io.hypersistence</groupId>
<artifactId>hypersistence-utils-hibernate-73</artifactId>
<version>3.16.0</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>build-helper-maven-plugin</artifactId>
<version>3.6.1</version>
<executions>
<execution>
<id>add-hypersistence-tests</id>
<phase>generate-test-sources</phase>
<goals><goal>add-test-source</goal></goals>
<configuration>
<sources><source>src/hypersistence-test/java</source></sources>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
</profile>
</profiles>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<configuration>
<argLine>-Xmx768m</argLine>
<forkCount>1</forkCount>
</configuration>
</plugin>
</plugins>
</build>
</project>