Migrate to Spring Boot 4 #1884
Description
original attempt: #1880
- https://spring.io/blog/2025/11/20/spring-boot-4-0-0-available-now
- https://github.com/spring-projects/spring-boot/wiki/Spring-Boot-4.0-Migration-Guide
it will not be easy, because there are many major changes. one big change seems to be the switch to jackson 3.x
should use https://docs.openrewrite.org/recipes/java/spring/boot4/upgradespringboot_4_0-community-edition
as in:
<project>
<build>
<plugins>
<plugin>
<groupId>org.openrewrite.maven</groupId>
<artifactId>rewrite-maven-plugin</artifactId>
<version>6.24.0</version>
<configuration>
<exportDatatables>true</exportDatatables>
<activeRecipes>
<recipe>org.openrewrite.java.spring.boot4.UpgradeSpringBoot_4_0</recipe>
</activeRecipes>
</configuration>
<dependencies>
<dependency>
<groupId>org.openrewrite.recipe</groupId>
<artifactId>rewrite-spring</artifactId>
<version>6.19.0</version>
</dependency>
</dependencies>
</plugin>
</plugins>
</build>
</project>