Java Plugins for Claude Code
A Claude Code plugin marketplace with 3 focused plugins for Java developers. All plugins support Java 8 through Java 21 and tailor advice to your target Java version.
Plugins
| Plugin | Skills | Commands | Agents | Install when |
|---|
java-core | 14 | 2 | java-architect, java-build-resolver | Every Java project |
java-spring | 7 | 2 | java-spring-expert | Spring Boot projects |
java-quality | 3 | 1 | java-security-reviewer, java-performance-reviewer, java-test-engineer | Quality enforcement |
Quick Setup (5 minutes)
- Copy
templates/CLAUDE.md.template to your Java project root as CLAUDE.md and fill in the placeholders
- Copy
templates/settings.json.template to .claude/settings.local.json to pre-approve build/test commands
- Install the plugins (below)
Installation
Step 1 — Add the marketplace
/plugin marketplace add ducpm2303/claude-java-plugins
Step 2 — Install plugins
/plugin install java-core@java-plugins # every Java project
/plugin install java-spring@java-plugins # Spring Boot projects
/plugin install java-quality@java-plugins # security + performance + testing
Updating
/plugin marketplace update java-plugins
Skills (auto-invoked)
Skills activate automatically based on context, or invoke them explicitly.
java-core
| Skill | What it does |
|---|
/java-core:java-review | Review Java code for bugs, naming issues, and version-appropriate idioms |
/java-core:java-refactor | Suggest and apply version-gated refactorings |
/java-core:java-explain | Explain Java code in plain language |
/java-core:java-fix | Diagnose compile errors or stack traces |
/java-core:java-docs | Generate Javadoc for classes and methods |
/java-core:java-health | Structural health score across Security, Tests, Performance, Quality (A–F) |
/java-core:java-concurrency-review | Review thread safety, race conditions, and Java 21 virtual thread compatibility |
/java-core:java-api-review | Review REST API design — HTTP methods, status codes, naming, versioning |
/java-core:java-migrate | Interactive migration guide: Java 8→11, 11→17, or 17→21 |
/java-core:java-commit | Generate a Conventional Commits message for staged Java changes |
/java-core:java-solid | Check all 5 SOLID principles with Java-specific patterns |
/java-core:java-design-pattern | Detect GoF patterns in code or recommend a pattern for a problem |
/java-core:java-adr | Create, list, and manage Architecture Decision Records |
/java-core:java-clean-arch | Review for Clean/Hexagonal Architecture violations or scaffold a full hexagonal layout with DDD patterns |
java-spring
| Skill | What it does |
|---|
/java-spring:java-scaffold | Scaffold a brand-new Spring Boot project (2.7.x – 4.0.x) |
/java-spring:java-jpa | Deep JPA review — N+1 queries, fetch strategies, projections, Specifications |
/java-spring:java-logging | Review logging — SLF4J, MDC, structured logging, PII safety |
/java-spring:java-crud | Generate a complete CRUD feature in an existing project |
/java-spring:java-security | Review or generate Spring Security config — JWT, OAuth2, method security, CORS (Boot 2.x & 3.x) |
/java-spring:java-openapi | Generate or review OpenAPI/Swagger docs — @Tag, @Operation, @Schema, JWT auth scheme (springdoc v1/v2) |
/java-spring:java-spring-ai | Add AI features to Spring Boot — ChatClient, RAG, tool calling, memory (Spring AI 1.x / LangChain4J) |
java-quality
| Skill | What it does |
|---|
/java-quality:java-security-check | Quick OWASP scan — secrets, injection, weak crypto, Spring Security misconfigs |
/java-quality:java-perf-check | Quick performance scan — N+1, memory, threading, algorithmic hotspots |
/java-quality:java-test | Generate JUnit 5 + Mockito unit or Testcontainers integration tests |
Commands (explicit slash commands)
Commands are explicitly triggered workflows — builds, analysis runs, and reports.
java-core
| Command | What it does |
|---|
/java-core:build | Run a clean Maven/Gradle build and report test results or compile errors |
/java-core:check | Run configured static analysis (Checkstyle, SpotBugs, PMD) and report findings |
java-spring
| Command | What it does |
|---|
/java-spring:run | Start the Spring Boot app locally with pre-flight checks (env vars, DB) |
/java-spring:routes | Print a REST endpoint table scanned from all @RestController classes |
java-quality
| Command | What it does |
|---|
/java-quality:audit | Full quality audit: security + performance + test coverage in one combined report |
Agents
Agents are specialist sub-agents Claude can delegate to:
ducpm2303