java-pro
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.
Profile →npx skills add sickn33/agentic-awesome-skills --skill java-pro --agent claude-code
Same command for any agent — swap --agent for codex, cursor, copilot.
Weekly change comes from our own snapshots, not the repository page — it measures attention, not adoption.
## 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 ### Modern Java Language Features - Java 21+ LTS features including virtual threads (Project Loom) - Pattern matching for switch expressions and instanceof - Record classes for immutable data carriers - Text blocks and string templates for better readability - Sealed classe
- Use this skill when
- Do not use this skill when
- Instructions
- Purpose
- Capabilities
- Modern Java Language Features
- Virtual Threads & Concurrency
- Spring Framework Ecosystem
- JVM Performance & Optimization
- Enterprise Architecture Patterns
- Database & Persistence
- Testing & Quality Assurance
- Cloud-Native Development
- Modern Build & DevOps
What does the java-pro skill do?
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.
How do I install it?
Run `npx skills add sickn33/agentic-awesome-skills --skill java-pro --agent claude-code` — it drops the skill into your project so the agent can pick it up. Swap the --agent value for codex, cursor or copilot if you use one of those.
Where does this skill come from?
From sickn33/agentic-awesome-skills, a repository with 44,414 stars. We read it straight from the repository tree rather than a submitted listing, so what you see here is what is actually published.
Is a popular skill a good skill?
Not necessarily. Stars measure attention, not adoption — a repository can trend for a week and be abandoned. That is why we show the weekly change from our own snapshots next to the total, instead of a single flattering number.