Миграция Java-проекта на новую версию

general

java-migration is a Claude Code skill that guides developers through upgrading Java projects across major versions — from 8 to 11, 17, 21, and 25. It activates on prompts like "upgrade to Java 21" or "migrate from Java 8", then walks through the full migration path: identifying removed APIs and deprecations, recommending modern language features such as records, pattern matching, sealed classes, and Virtual Threads, and covering how to validate each incremental step. The skill is part of the 18-skill claude-code-java collection (MIT license), built for Java/Maven development with a focus on token efficiency and reproducible workflows. It is most valuable for teams maintaining legacy codebases and planning a move to the current LTS or the latest JDK release.