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112-java-maven-plugins

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UpdatedJuly 10, 2026 at 17:41

Use when you need to add or configure Maven plugins in your pom.xml — including quality tools (enforcer, surefire, failsafe, jacoco, pitest, spotbugs, pmd), security scanning (OWASP), code formatting (Spotless), version management, container image build (Jib), build information tracking, and benchmarking (JMH) — through a consultative, modular step-by-step approach that only adds what you actually need. This should trigger for requests such as Add Maven plugins in pom.xml; Improve Maven plugins in pom.xml; Configure Maven quality plugins in pom.xml; Add Maven build lifecycle plugins for Java verification; Review Maven plugin versions and executions. Part of Plinth Toolkit

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name	112-java-maven-plugins
description	Use when you need to add or configure Maven plugins in your pom.xml — including quality tools (enforcer, surefire, failsafe, jacoco, pitest, spotbugs, pmd), security scanning (OWASP), code formatting (Spotless), version management, container image build (Jib), build information tracking, and benchmarking (JMH) — through a consultative, modular step-by-step approach that only adds what you actually need. This should trigger for requests such as Add Maven plugins in pom.xml; Improve Maven plugins in pom.xml; Configure Maven quality plugins in pom.xml; Add Maven build lifecycle plugins for Java verification; Review Maven plugin versions and executions. Part of Plinth Toolkit
license	Apache-2.0
metadata	{"author":"Juan Antonio Breña Moral","version":"0.17.0"}

Maven Plugins: pom.xml Configuration Best Practices

Configure Maven plugins and profiles in pom.xml using a structured, question-driven process that preserves existing configuration. This is an interactive SKILL.

What is covered in this Skill?

Maven plugins:

Maven Compiler
Maven Enforcer
Maven Surefire
Maven Failsafe
HTML test reports (Surefire Report, JXR)
Maven Spotless
Maven Flatten
Maven Versions
Maven Git Commit ID
Maven Jib

Maven profiles:

JaCoCo (code coverage)
PiTest (mutation testing)
Security (OWASP dependency check)
Static analysis (SpotBugs, PMD)
SonarQube/SonarCloud
JMH (Java Microbenchmark Harness)
Cyclomatic complexity

Constraints

Before applying plugin recommendations, ensure the project is in a valid state. Use a structured, question-driven process that preserves existing configuration and adds only what the user selects.

MANDATORY: Run ./mvnw validate or mvn validate before applying any plugin recommendations
SAFETY: If validation fails, stop and ask the user to fix issues—do not proceed until resolved
SCOPE: Begin with Step 1 (existing configuration analysis) before any changes. Never remove or replace existing plugins; only add new ones that do not conflict
BEFORE READING PLUGIN REFERENCES: Run the question flow embedded in this SKILL.md first. Ask questions one-by-one in strict order, collect all selected plugins/profiles and conditional values, then read only the implementation references selected by the user's answers

When to use this skill

Add Maven plugins in pom.xml
Improve Maven plugins in pom.xml
Configure Maven quality plugins in pom.xml
Add Maven build lifecycle plugins for Java verification
Review Maven plugin versions and executions

Workflow

Validate project before plugin changes

Run ./mvnw validate or mvn validate and stop if validation fails.

Analyze current plugin and profile configuration

Before making any changes to pom.xml:

Scan existing plugins in <build><plugins>, <build><pluginManagement>, and <reporting><plugins>.
Scan existing properties in <properties>.
Scan existing profiles in <profiles>.
Identify conflicts between existing configuration and possible additions.
Preserve all existing plugins, properties, and profiles.
Ask the user before enhancing any existing plugin, property, reporting entry, support file, or profile.
Skip duplicate additions unless the user explicitly requests an enhancement.
Check Maven Wrapper before plugin changes

Check for Maven Wrapper files in the project root:

mvnw and mvnw.cmd
.mvn/wrapper/maven-wrapper.properties

If Maven Wrapper is not present, stop and ask:

"I notice this project doesn't have Maven Wrapper configured. The Maven Wrapper ensures everyone uses the same Maven version, improving build consistency across different environments. Would you like me to install it? (y/n)"

Wait for the user's response before asking any other question. If the user says "y", install it:

mvn wrapper:wrapper

Ask Maven plugin assessment questions before reading references

Run this XML-included question flow before reading any plugin/profile implementation reference. Ask one question at a time, wait for the user's answer, and record selected plugins, profiles, and conditional values before continuing.

Question 1: What type of Java project is this?

Options:

Java Library (for publishing to Maven Central/Nexus)
Java CLI Application (command-line tool)
Java Microservice (Web service/REST API/Modular monolith)
Serverless (AWS Lambdas, Azure Functions)
Java POC (Proof of Concept)
Other (specify)

Question 2: Which Java version does your project target?

Options:

Java 17 (LTS - recommended for new projects)
Java 21 (LTS - latest LTS version)
Java 25 (LTS - latest LTS version)
Other (specify version)

Question 3: What build and quality aspects are important for your project?

Options:

Format source code (Spotless)
Maven Enforcer
Unit Testing (Surefire)
Unit Testing Reports (Surefire Reports)
Integration testing (Failsafe)
Code coverage reporting (JaCoCo)
Mutation testing (PiTest)
Security vulnerability scanning (OWASP)
Security static code analysis (SpotBugs, PMD)
Sonar
Dependency analysis (maven-dependency-plugin)
Version management
Container image build (Jib)
JMH (Java Microbenchmark Harness)
Maven Compiler
Cyclomatic Complexity

Note: When "Cyclomatic Complexity" is selected, Step 20 will create a PMD ruleset file and profile. The ruleset location depends on project structure: src/main/pmd/pmd-cyclomatic-complexity.xml (mono-module) or pmd/pmd-cyclomatic-complexity.xml (multi-module).

Question 3.1 (conditional): What is your target container image for Jib?

Note: This question is only asked if "Container image build (Jib)" was selected in question 3.

Example format: gcr.io/my-project/my-app, docker.io/username/myimage, or myimage for local Docker
The image name will be used in the Jib plugin <to><image> configuration

Question 4: What is your target coverage threshold?

Options:

70% (moderate)
80% (recommended)
90% (high)
Custom percentage (specify)

Note: This question is only asked if "Code coverage reporting (JaCoCo)" was selected in question 3.

Question 5: Do you want to configure Sonar/SonarCloud integration?** (y/n)

Note: This question is only asked if "Static code analysis (SpotBugs, Sonar)" was selected in question 3.

If yes, please provide the following information:

Question 5.1: What is your Sonar organization identifier?

For SonarCloud: This is typically your GitHub username or organization name
For SonarQube: This is your organization key as configured in SonarQube
Example: my-github-user or my-company-org

Question 5.2: What is your Sonar project key?

For SonarCloud: Usually in format GITHUB_USER_REPOSITORY_NAME (e.g., john-doe_my-java-project)
For SonarQube: Custom project key as defined in your SonarQube instance
Must be unique within your Sonar organization
Example: john-doe_awesome-java-lib

Question 5.3: What is your Sonar project display name?

Human-readable name for your project as it appears in Sonar dashboard
Can contain spaces and special characters
Example: Awesome Java Library or My Microservice API

Question 5.4: Which Sonar service are you using? (conditional)

Note: This question is only asked if Sonar configuration was enabled in question 5.

Options:

SonarCloud (https://sonarcloud.io) - recommended for open source projects
SonarQube Server (specify your server URL)

If SonarQube Server: Please provide your SonarQube server URL (e.g., https://sonar.mycompany.com)

After all applicable questions are answered, confirm the selections and map them to references:

If Maven Compiler is selected, read references/112-java-maven-plugins-maven-compiler-plugin.md.
If Maven Enforcer is selected, read references/112-java-maven-plugins-maven-enforcer-plugin.md.
If Unit Testing (Surefire) is selected, read references/112-java-maven-plugins-maven-surefire-plugin.md.
If Integration testing (Failsafe) is selected, read references/112-java-maven-plugins-maven-failsafe-plugin.md.
If Unit Testing Reports (Surefire Reports) is selected, read references/112-java-maven-plugins-maven-surefire-report-plugin.md and references/112-java-maven-plugins-maven-jxr-plugin.md.
If Format source code (Spotless) is selected, read references/112-java-maven-plugins-spotless-maven-plugin.md.
If Version management is selected, read references/112-java-maven-plugins-versions-maven-plugin.md.
If build information tracking is selected, read references/112-java-maven-plugins-git-commit-id-maven-plugin.md.
If the project is a Java Library, read references/112-java-maven-plugins-flatten-maven-plugin.md.
If Container image build (Jib) is selected, read references/112-java-maven-plugins-jib-maven-plugin.md.
If Dependency analysis is selected, read references/112-java-maven-plugins-maven-dependency-plugin.md.
If Code coverage reporting (JaCoCo) is selected, read references/112-java-maven-plugins-profile-jacoco.md.
If Mutation testing (PiTest) is selected, read references/112-java-maven-plugins-profile-pitest.md.
If Security vulnerability scanning (OWASP) is selected, read references/112-java-maven-plugins-profile-security.md.
If Security static code analysis (SpotBugs, PMD) is selected, read references/112-java-maven-plugins-profile-static-analysis.md.
If Sonar is selected, read references/112-java-maven-plugins-profile-sonar.md.
If JMH is selected, read references/112-java-maven-plugins-profile-jmh.md.
If Cyclomatic Complexity is selected, read references/112-java-maven-plugins-profile-cyclomatic-complexity.md.
Do not read or apply unselected plugin/profile references.

Read selected references and add only selected configuration

Add selected plugins and profiles without removing existing ones, preserving project structure and compatibility. Add only the Maven properties, plugin configuration, profile configuration, reporting plugins, and support files required by the selected references.

Summarize applied plugin setup

Report added plugins/profiles, rationale, and recommended follow-up commands or checks.

Reference

For detailed guidance, examples, and constraints, see: