java-17-to-java-21-upgrade

Community

Master Java 21: Upgrade from Java 17.

AuthorpingqLIN
Version1.0.0
Installs0

System Documentation

What problem does it solve?

This Skill provides comprehensive guidance and best practices for developers to seamlessly upgrade their Java projects from JDK 17 to JDK 21, leveraging new language features and API enhancements.

Core Features & Use Cases

  • New Language Features: Detailed explanations and code examples for Pattern Matching for switch, Record Patterns, String Templates, Sequenced Collections, and more.
  • Concurrency Improvements: Guidance on adopting Virtual Threads for enhanced application scalability.
  • API Updates: Information on new APIs and changes, including UTF-8 as default, Simple Web Server, and Key Encapsulation Mechanism API.
  • Deprecations: Advice on migrating away from deprecated features like finalization.
  • Build Configuration: Examples for Maven and Gradle to enable preview features and configure virtual threads.

Quick Start

Guide me through upgrading a Java project from version 17 to 21, focusing on the new pattern matching features.

Dependency Matrix

Required Modules

None required

Components

references

💻 Claude Code Installation

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Please help me install this Skill:
Name: java-17-to-java-21-upgrade
Download link: https://github.com/pingqLIN/skill-0/archive/main.zip#java-17-to-java-21-upgrade

Please download this .zip file, extract it, and install it in the .claude/skills/ directory.
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