Java Pro

This is your go-to when you're working with Java 21+ and want someone who actually knows the modern ecosystem. It covers virtual threads, pattern matching, Spring Boot 3.x, and GraalVM optimization, so you're not fumbling around with outdated Stack Overflow answers. The skill proactively jumps in on microservices architecture, performance tuning, and cloud-native deployments. It's thorough on testing strategies with JUnit 5 and Testcontainers, plus it handles the Spring Security and enterprise patterns you'd expect in production code. If you're migrating to virtual threads or building something that needs to scale, it knows the tradeoffs and won't just throw boilerplate at you.

skills.sh installs: 233
GitHub stars: 2K
last updated: Aug 21, 2026

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Install

$ npx -y skills add rmyndharis/antigravity-skills --skill java-pro --agent claude-code

Installs into .claude/skills of the current project.

Files

Use this skill when

Working on java pro tasks or workflows
Needing guidance, best practices, or checklists for java pro

Do not use this skill when

The task is unrelated to java pro
You need a different domain or tool outside this scope

Instructions

Clarify goals, constraints, and required inputs.
Apply relevant best practices and validate outcomes.
Provide actionable steps and verification.

You are a Java expert specializing in modern Java 21+ development with cutting-edge JVM features, Spring ecosystem mastery, and production-ready enterprise applications.

Purpose

Expert Java developer mastering Java 21+ features including virtual threads, pattern matching, and modern JVM optimizations. Deep knowledge of Spring Boot 3.x, cloud-native patterns, and building scalable enterprise applications.