---
version: 4.1.0-fractal
name: java-pro-1b173d60fc68
description: Master Java 21+ with modern features like virtual threads, pattern
  matching, and Spring Boot 3.x. Expert in the latest Java ecosystem including
  GraalVM, Project Loom, and cloud-native patterns. Use PROACTIVELY for Java
  development, microservices architecture, or performance optimization.
metadata:
  model: opus
---

## 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.
- If detailed examples are required, open `resources/implementation-playbook.md`.

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.

## Capabilities

## 🧠 Knowledge Modules (Fractal Skills)

### 1. [Modern Java Language Features](./sub-skills/modern-java-language-features.md)
### 2. [Virtual Threads & Concurrency](./sub-skills/virtual-threads-concurrency.md)
### 3. [Spring Framework Ecosystem](./sub-skills/spring-framework-ecosystem.md)
### 4. [JVM Performance & Optimization](./sub-skills/jvm-performance-optimization.md)
### 5. [Enterprise Architecture Patterns](./sub-skills/enterprise-architecture-patterns.md)
### 6. [Database & Persistence](./sub-skills/database-persistence.md)
### 7. [Testing & Quality Assurance](./sub-skills/testing-quality-assurance.md)
### 8. [Cloud-Native Development](./sub-skills/cloud-native-development.md)
### 9. [Modern Build & DevOps](./sub-skills/modern-build-devops.md)
### 10. [Security & Best Practices](./sub-skills/security-best-practices.md)


---
Source attribution: Dokhacgiakhoa
Original project: https://github.com/Dokhacgiakhoa/antigravity-ide/blob/c4a059bbf7a8d6b2162071f0fbfe74053faa6d20/.agent/skills/java-pro/SKILL.md
License: MIT
License information: https://opensource.org/license/mit
Original upstream instructions; downloaded from Mega AI Hub.

## Upstream license notice

MIT License

Copyright (c) 2026 Dokhacgiakhoa

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

================================================================================
UNIVERSAL ACKNOWLEDGEMENTS & REFERENCES
================================================================================

This project is authored and maintained by Dokhacgiakhoa.
Antigravity IDE (Enhanced Edition) draws significant inspiration and inherits 
open-source knowledge from the following masters and repositories:

1. Antigravity Kit (Core Reference)
   - Original Author: vudovn
   - Link: https://github.com/vudovn/antigravity-kit

2. Antigravity Awesome Skills (Skill Metadata Reference)
   - Original Author: sickn33
   - Link: https://github.com/sickn33/antigravity-awesome-skills

3. UI/UX Pro Max (Design Philosophy Reference)
   - Original Author: sickn33
   - Link: https://github.com/sickn33/ui-ux-pro-max

4. Model Context Protocol (MCP) standards
   - Authors: Anthropic & Ecosystem Contributors
   - Link: https://modelcontextprotocol.io/

5. High-Performance Web Standards
   - Inspiration: Vercel Engineering & Anthony Fu (antfu)

6. Strategic Knowledge Extraction
   - Inspiration: Fabric Patterns (danielmiessler)

*Note: All trademarks and copyrights belong to their respective owners. 
The references above reflect research-level inspiration and antecedent 
contributions. These parties are not involved in the management of this repository.*



# Mega AI Hub resource metadata

Creator / publisher: Dokhacgiakhoa
Original project: https://github.com/Dokhacgiakhoa/antigravity-ide/blob/c4a059bbf7a8d6b2162071f0fbfe74053faa6d20/.agent/skills/java-pro/SKILL.md
Attribution basis: Source repository record

Fields of work: Development & Engineering, Product Management
Roles: Backend Developer, DevOps / SRE, Growth Product Manager, Product Manager, Technical Product Manager
Specialties: Backend, DevOps
Tools: Spring Boot
Country applicability: Country not specified
Classification basis: Source catalog labels
Instruction SHA-256: 34b59bd9a32892e546998dda4b7d5833959b3185a5777cb015722eed744909da