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	9	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)

1. Copy templates/CLAUDE.md.template to your Java project root as CLAUDE.md and fill in the placeholders
2. Copy templates/settings.json.template to .claude/settings.local.json to pre-approve build/test commands
3. Install the plugins (below)

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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

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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