java-maven

Name: java-maven
Author: pluginagentmarketplace

Apache Maven configuration, dependency management, and multi-module project setup for Java builds. Covers POM structure, lifecycle phases (validate through deploy), and plugin configuration with practical examples Supports single-module, multi-module, and library project types with BOM-based dependency management Includes troubleshooting guidance for common issues like dependency conflicts, version mismatches, and build memory problems Provides Maven commands for dependency analysis, version checking, and effective POM inspection

INSTALLATION

npx skills add https://github.com/pluginagentmarketplace/custom-plugin-java --skill java-maven

Run in your project or agent environment. Adjust flags if your CLI version differs.

SKILL.md

Java Maven Skill

Master Apache Maven for Java project builds and dependency management.

Overview

This skill covers Maven configuration including POM structure, lifecycle phases, plugin configuration, dependency management with BOMs, and multi-module projects.

When to Use This Skill

Use when you need to:

Configure Maven POM files

Manage dependencies with BOMs

Set up build plugins

Create multi-module projects

Troubleshoot build issues

Quick Reference

<?xml version="1.0" encoding="UTF-8"?>

<project xmlns="http://maven.apache.org/POM/4.0.0">

    <modelVersion>4.0.0</modelVersion>

    <groupId>com.example</groupId>

    <artifactId>my-app</artifactId>

    <version>1.0.0-SNAPSHOT</version>

    <properties>

        <java.version>21</java.version>

        <maven.compiler.source>${java.version}</maven.compiler.source>

        <maven.compiler.target>${java.version}</maven.compiler.target>

    </properties>

    <dependencyManagement>

        <dependencies>

            <dependency>

                <groupId>org.springframework.boot</groupId>

                <artifactId>spring-boot-dependencies</artifactId>

                <version>3.2.1</version>

                <type>pom</type>

                <scope>import</scope>

            </dependency>

        </dependencies>

    </dependencyManagement>

    <build>

        <plugins>

            <plugin>

                <groupId>org.apache.maven.plugins</groupId>

                <artifactId>maven-enforcer-plugin</artifactId>

                <version>3.4.1</version>

            </plugin>

        </plugins>

    </build>

</project>

Lifecycle Phases

validate → compile → test → package → verify → install → deploy

Useful Commands

mvn dependency:tree                    # View dependencies

mvn dependency:analyze                 # Find unused/undeclared

mvn versions:display-dependency-updates  # Check updates

mvn help:effective-pom                 # View effective POM

mvn -B verify                          # Batch mode build

Troubleshooting

Problem

Solution

Dependency not found

Check repository, version

Version conflict

Use BOM or enforcer

Build OOM

Set MAVEN_OPTS=-Xmx1g

Usage

Skill("java-maven")