Is there a safety check before applying changes?

Yes, the skill includes a mandatory scanner script that identifies migration issues and prompts for an assessment before any changes are applied.

Can I use this for Spring Modulith projects?

Absolutely. The skill includes specific references and a decision tree for migrating to Spring Modulith 2.0 and managing event store configurations.

What versions does this migration skill support?

It specifically targets upgrading Spring Boot 3.x applications to Spring Boot 4.0, Java 25, Spring Modulith 2.0.x, and Testcontainers 2.x.

How does the skill handle breaking code changes?

It follows a phased approach: first scanning the codebase for issues, then updating dependencies, followed by automated refactoring of imports and annotations like @MockitoBean.

Does it automatically update Maven or Gradle files?

Yes, Phase 1 of the migration workflow includes updating pom.xml or build.gradle files, including renaming starters such as 'web' to 'webmvc'.

Spring Boot 4 & Java 25 Migration

Name: Spring Boot 4 & Java 25 Migration
Author: a-pavithraa

bya-pavithraa

API Development

Automates the upgrade of Spring Boot applications to version 4.0 and Java 25 using a structured, phased migration strategy.

About

This skill provides a comprehensive framework for migrating legacy Spring Boot 3.x applications to Spring Boot 4.0 and Java 25. It features a built-in scanner to detect breaking changes like starter renames (e.g., web to webmvc), test annotation shifts (@MockitoBean), and Jackson 3 compatibility issues. By enforcing a structured approach—covering dependencies, code refactoring, and configuration updates—it ensures high-stability migrations for Spring Modulith 2.0 and Testcontainers 2.x while minimizing manual errors and technical debt.

Key Features

Compatibility management for Spring Modulith 2.0 and Testcontainers 2.x
Structured workflow for Java 25 and Spring Boot 4.0 upgrades
Smart refactoring for Spring Boot starter renames and package relocations
Automated transition from @MockBean to @MockitoBean annotations
0 GitHub stars
Automated migration scanner for breaking changes and version conflicts

Use Cases

Updating modular monoliths to Spring Modulith 2.0 and Testcontainers 2.x
Upgrading Spring Boot 3.x backend services to Spring Boot 4.0
Modernizing enterprise Java applications to Java 25

About

Key Features

Compatibility management for Spring Modulith 2.0 and Testcontainers 2.x
Structured workflow for Java 25 and Spring Boot 4.0 upgrades
Smart refactoring for Spring Boot starter renames and package relocations
Automated transition from @MockBean to @MockitoBean annotations
0 GitHub stars
Automated migration scanner for breaking changes and version conflicts

Use Cases

Updating modular monoliths to Spring Modulith 2.0 and Testcontainers 2.x
Upgrading Spring Boot 3.x backend services to Spring Boot 4.0
Modernizing enterprise Java applications to Java 25