skill

java-pro — Claude Code skill for Java: features and install

Q: How do I install java-pro in Claude Code?

Run `npx claude-code-templates@latest --skill development/java-pro`.

Q: Where can I find detailed examples?

Open `resources/implementation-playbook.md` for detailed examples.

Get guidance on Java 21+, Spring Boot, and JVM development. Use the skill when planning tests, concurrency, application architecture, or performance work.

Install into Claude Code · claude-code-templates All methods and platforms ↓

npx claude-code-templates@latest --skill development/java-pro

Open on GitHub

What java-pro does

The skill covers Java 21+ features such as virtual threads, pattern matching, and records, alongside Spring Boot 3.x. Ask for help with a specific implementation task or a plan for validating changes. Its scope also includes persistence, testing, security, and cloud-native development.

For performance work, it discusses GraalVM Native Image, garbage collection, and profiling tools. Testing topics include JUnit 5, Mockito, and Testcontainers. These are recommendations for an agent to apply to your task, not automatic edits to the project, so check them against your dependencies and architecture. Detailed examples are in resources/implementation-playbook.md; open that file when you need them.

What it helps with

choose Java 21+ features for an implementation
plan a migration to virtual threads
review a Spring Boot application architecture
outline integration tests with JUnit 5 and Testcontainers
identify JVM performance tuning options

Example prompts for the agent

Review this Spring Boot service and suggest a module structure that fits its responsibilities.
Plan a move to virtual threads for request handling and list checks for the migration.
Draft an integration testing plan for this application using JUnit 5 and Testcontainers.

How to install java-pro

1claude-code-templates

npx claude-code-templates@latest --skill development/java-pro

2Skills CLI (Vercel)

npx skills add davila7/claude-code-templates --skill java-pro -a claude-code

3Manually: put the files in place

~/.claude/skills/java-pro/SKILL.md

Copy the whole skill folder; for one project use .claude/skills/java-pro/

Manually: put the files in place

.agents/skills/java-pro/SKILL.md

For all projects use ~/.agents/skills/

Manually: put the files in place

.cursor/skills/java-pro/SKILL.md

Cursor also reads .agents/skills/ and .claude/skills/

1GitHub CLI

gh skill install davila7/claude-code-templates java-pro

2Manually: put the files in place

.github/skills/java-pro/SKILL.md

Platform CLI

gemini skills install https://github.com/davila7/claude-code-templates --path cli-tool/components/skills/development/java-pro

Manually: put the files in place

.devin/skills/java-pro/SKILL.md

The legacy .windsurf/skills/ path still works

Step by step, with commands for each platform: How to install skills in Claude Code: five ways

Questions about java-pro

How do I install java-pro in Claude Code?

Run npx claude-code-templates@latest --skill development/java-pro.

What does java-pro do?

It guides Java 21+ and Spring Boot 3.x work, including concurrency, testing, application architecture, and JVM performance.

Where can I find detailed examples?

Open resources/implementation-playbook.md for detailed examples.

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