Spring Boot Migration

<!-- Before: Spring Boot 2.7.x -->
<parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>2.7.18</version>
</parent>

<!-- After: Spring Boot 3.2.x -->
<parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>3.2.0</version>
</parent>

<properties>
    <!-- Before -->
    <java.version>1.8</java.version>

    <!-- After -->
    <java.version>21</java.version>
</properties>

<!-- REMOVE ALL OF THESE - they are incompatible with Spring Boot 3 -->

<!-- Old JAXB API - MUST BE REMOVED -->
<dependency>
    <groupId>javax.xml.bind</groupId>
    <artifactId>jaxb-api</artifactId>
</dependency>

<!-- Old JAXB Implementation - MUST BE REMOVED -->
<dependency>
    <groupId>com.sun.xml.bind</groupId>
    <artifactId>jaxb-impl</artifactId>
</dependency>

<dependency>
    <groupId>com.sun.xml.bind</groupId>
    <artifactId>jaxb-core</artifactId>
</dependency>

<!-- Old Java Activation - MUST BE REMOVED -->
<dependency>
    <groupId>javax.activation</groupId>
    <artifactId>activation</artifactId>
</dependency>

<dependency>
    <groupId>javax.activation</groupId>
    <artifactId>javax.activation-api</artifactId>
</dependency>

<!-- Only add these if you actually need XML binding -->
<dependency>
    <groupId>jakarta.xml.bind</groupId>
    <artifactId>jakarta.xml.bind-api</artifactId>
</dependency>
<dependency>
    <groupId>org.glassfish.jaxb</groupId>
    <artifactId>jaxb-runtime</artifactId>
</dependency>

# Check if old JAXB is in your pom.xml
grep -E "javax\.xml\.bind|jaxb-api" pom.xml

# If this returns any results, you need to remove those dependencies

# This should return NO results
grep -E "<artifactId>jaxb-api</artifactId>" pom.xml
grep -E "javax\.xml\.bind" pom.xml

<!-- Before -->
<dependency>
    <groupId>io.jsonwebtoken</groupId>
    <artifactId>jjwt</artifactId>
    <version>0.9.1</version>
</dependency>

<!-- After -->
<dependency>
    <groupId>io.jsonwebtoken</groupId>
    <artifactId>jjwt-api</artifactId>
    <version>0.12.3</version>
</dependency>
<dependency>
    <groupId>io.jsonwebtoken</groupId>
    <artifactId>jjwt-impl</artifactId>
    <version>0.12.3</version>
    <scope>runtime</scope>
</dependency>
<dependency>
    <groupId>io.jsonwebtoken</groupId>
    <artifactId>jjwt-jackson</artifactId>
    <version>0.12.3</version>
    <scope>runtime</scope>
</dependency>

# Before
spring.jpa.database-platform=org.hibernate.dialect.H2Dialect

# After
spring.jpa.database-platform=org.hibernate.dialect.H2Dialect
# Note: In Hibernate 6, this is often auto-detected and may not need explicit configuration

# Update Spring Boot parent version
sed -i 's/<version>2\.7\.[0-9]*<\/version>/<version>3.2.0<\/version>/g' pom.xml

# Update Java version
sed -i 's/<java.version>1\.8<\/java.version>/<java.version>21<\/java.version>/g' pom.xml
sed -i 's/<java.version>8<\/java.version>/<java.version>21<\/java.version>/g' pom.xml
sed -i 's/<java.version>11<\/java.version>/<java.version>21<\/java.version>/g' pom.xml

# Remove old JAXB dependency (multi-line removal is complex - manual removal recommended)

# Check for old JAXB dependencies
grep -n "jaxb-api\|javax\.xml\.bind" pom.xml

# These must be manually removed from pom.xml:
# - javax.xml.bind:jaxb-api
# - com.sun.xml.bind:jaxb-impl
# - com.sun.xml.bind:jaxb-core