Java and JVM skills for Claude Code and Codex
Skills for Java on the JVM: Spring Boot and Quarkus applications, JDK upgrades, javax to Jakarta migration, GraalVM native images, Javadoc, refactoring moves and JUnit and TestNG tests. They help an agent work in enterprise Java codebases with the current platform versions.
- 20 listed skills
- 3 repositories
- 0 with full pages
18 from official publishers. 0 bundle scripts. 0 connect to an outside service. Listed in Testing and QA (6), Developer Tools and Frameworks (5), Code Review and Code Quality (5), Video, Image, Audio and Creative (1), AI Agents and LLM Engineering (1), Security (1), DevOps and Cloud (1).
All 20 Java and JVM skills
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| Skill | Repository | What it does |
|---|---|---|
| create-quarkus-project 77/100 · C | github/awesome-copilot | Create a new Quarkus project (Maven or Gradle) with the Quarkus CLI, code.quarkus.io API or Maven plugin, choose extensions, and run it in dev mode… |
| java-add-graalvm-native-image-support 69/100 · D | github/awesome-copilot | GraalVM Native Image expert that adds native image support to Java applications, builds the project, analyzes build errors, applies fixes, and… |
| java-architect 84/100 · B | jeffallan/claude-skills | Use when building, configuring, or debugging enterprise Java applications with Spring Boot 3.x, microservices, or reactive programming. Invoke to… |
| java-docs 61/100 · D | github/awesome-copilot | Ensure that Java types are documented with Javadoc comments and follow best practices for documentation. |
| java-helidon 77/100 · C | github/awesome-copilot | Get best practices for developing applications with Helidon 4 (SE and MP). Use when working with Helidon SE or Helidon MP, HttpService routing… |
| java-junit 62/100 · D | github/awesome-copilot | Get best practices for JUnit 5 unit testing, including data-driven tests |
| java-mcp-server-generator 89/100 · B | github/awesome-copilot | Use this skill when the user wants to create a Model Context Protocol (MCP) server in Java or in a Spring Boot app. Also use it when the user wants… |
| java-refactoring-extract-method 62/100 · D | github/awesome-copilot | Refactoring using Extract Methods in Java Language |
| java-refactoring-remove-parameter 62/100 · D | github/awesome-copilot | Refactoring using Remove Parameter in Java Language |
| java-springboot 65/100 · D | github/awesome-copilot | Get best practices for developing applications with Spring Boot. |
| java-upgrade 80/100 · B | github/awesome-copilot | Upgrade a Java project to a newer JDK (11 to 17, 17 to 21, 21 to 25) and adopt the new language and library features. Detects the current Java… |
| javax-to-jakarta-migration 77/100 · C | github/awesome-copilot | Migrate Java code from javax.* to jakarta.* namespace. Use only when the user explicitly asks for a javax to jakarta namespace or framework… |
| junit-5-skill 84/100 · B | LambdaTest/agent-skills | Generates production-grade JUnit 5 unit and integration tests in Java. Covers assertions, parameterized tests, lifecycle hooks, mocking with… |
| kotlin-springboot 65/100 · D | github/awesome-copilot | Get best practices for developing applications with Spring Boot and Kotlin. |
| quarkus-application-development 80/100 · B | github/awesome-copilot | Write Quarkus application code: REST with Quarkus REST, validation, exception mappers, OpenAPI, configuration, CDI (ArC), Hibernate ORM with… |
| quarkus-dev-services-and-testing 77/100 · C | github/awesome-copilot | Quarkus Dev Services and testing: zero-config containers, @QuarkusTest, @QuarkusIntegrationTest, test resources, RestAssured, @InjectMock, profiles… |
| quarkus-native-and-container 77/100 · C | github/awesome-copilot | Build Quarkus native executables (Mandrel/GraalVM), fix native failures with reflection registration, test the native binary, and produce container… |
| spring-boot-engineer 84/100 · B | jeffallan/claude-skills | Generates Spring Boot 3.x configurations, creates REST controllers, implements Spring Security 6 authentication flows, sets up Spring Data JPA… |
| spring-boot-testing 70/100 · C | github/awesome-copilot | Expert Spring Boot 4 testing specialist that selects the best Spring Boot testing techniques for your situation with Junit 6 and AssertJ. |
| testng-skill 81/100 · B | LambdaTest/agent-skills | Generates TestNG tests in Java with groups, data providers, parallel execution, XML suite configuration, and listeners. Use when user mentions… |
How to choose Java and JVM skills
Choose by framework. Spring Boot and Quarkus each have their own application, testing and native-build skills.
Upgrade skills (JDK versions, Jakarta namespace) change many files at once; run them on a branch with your test suite ready.
Most of these are Markdown guidance from the awesome-copilot collection, so they run with your existing Maven or Gradle setup.
Related topics
Test Automation 134Unit Testing 42Code Assistants 21Refactoring 23Authentication and Login 16Dependency Management 23Docker and Containers 22Documentation and READMEs 42
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