Overview
Devin can help you upgrade Java applications across major versions, handling dependency updates, API migrations, and ensuring compatibility with modern Java features. Whether you’re moving from Java 8 to 11, 11 to 17, or any other version upgrade, Devin can automate the tedious parts while maintaining code quality.Common Java Upgrade Scenarios
Java 8 to Java 11
- Module system (Project Jigsaw) compatibility
- Removal of deprecated APIs (e.g.,
sun.*packages) - Updated garbage collection defaults
- New HTTP client API
Java 11 to Java 17
- Sealed classes and pattern matching
- Records for immutable data
- Text blocks for multi-line strings
- Enhanced switch expressions
Spring Boot Version Upgrades
- Spring Boot 2.x to 3.x migrations
- Jakarta EE namespace changes (javax.* to jakarta.*)
- Configuration property updates
- Dependency compatibility resolution
Additional Resources
- Java Version Migration Guide
- Spring Boot 3.0 Migration Guide
- Devin Playbooks - Create reusable upgrade workflows
- Devin Knowledge - Store project-specific upgrade patterns