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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<meta name="description" content="">
<meta name="keywords" content="userdocstools, ">
<title>Maven PMD Plugin | PMD Source Code Analyzer</title>
<link rel="stylesheet" type="text/css" href="assets/fontawesome-free-5.15.4-web/css/all.min.css">
<link rel="stylesheet" type="text/css" href="assets/bootstrap-4.5.2-dist/css/bootstrap.min.css">
<link rel="stylesheet" type="text/css" href="css/syntax.css">
<link rel="stylesheet" type="text/css" href="css/modern-business.css">
<link rel="stylesheet" type="text/css" href="css/customstyles.css">
<link rel="stylesheet" type="text/css" href="css/theme-green.css">
<link rel="stylesheet" type="text/css" href="css/pmd-customstyles.css">
<link rel="shortcut icon" href="images/logo/favicon.ico" type="image/x-icon">
<link rel="icon" href="images/logo/favicon.ico" type="image/x-icon">
<link rel="alternate" type="application/rss+xml" title="" href="feed.xml">
</head>
<body>
<!-- Content is offset by the height of the topnav bar. -->
<!-- There's already a padding-top rule in modern-business.css, but it apparently doesn't work on Firefox 60 and Chrome 67 -->
<div id="topbar-content-offset">
<!-- Navigation -->
<nav class="navbar navbar-expand-lg fixed-top navbar-dark">
<div class="container topnavlinks">
<a class="navbar-brand fas fa-home fa-lg" href="index.html">&nbsp;<span class="projectTitle"> PMD Source Code Analyzer Project</span></a>
<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="navbarSupportedContent">
<ul class="navbar-nav mr-auto mt-2 mt-lg-0"></ul>
<ul class="navbar-nav">
<!-- toggle sidebar button -->
<li class="nav-item"><a id="tg-sb-link" class="nav-link" href="#"><i id="tg-sb-icon" class="fas fa-toggle-on"></i> Nav</a></li>
<!-- entries without drop-downs appear here -->
<li class="nav-item"><a class="nav-link" href="https://github.com/pmd/pmd/releases/latest" target="_blank">Download</a></li>
<li class="nav-item"><a class="nav-link" href="https://github.com/pmd/pmd" target="_blank">Fork us on github</a></li>
<!-- entries with drop-downs appear here -->
<!-- conditional logic to control which topnav appears for the audience defined in the configuration file.-->
</ul>
<form class="form-inline my-2 my-lg-0">
<input class="form-control mr-sm-2" type="search" placeholder="search..." id="search-input">
<ul id="results-container"></ul>
</form>
</div>
</div>
</nav>
<!-- Page Content -->
<div class="container-toc-wrapper">
<div class="container">
<div class="col-lg-12">&nbsp;</div>
<!-- Content Row -->
<div class="row">
<!-- Sidebar Column -->
<div class="col-md-3" id="tg-sb-sidebar">
<ul id="mysidebar" class="nav">
<li class="sidebarTitle">PMD 7.8.0-SNAPSHOT</li>
<div class="sidebarTitleDate">Release date: 29-November-2024</div>
<li>
<a href="#">About</a>
<ul>
<li><a href="index.html">Home</a></li>
<li><a href="pmd_release_notes.html">Release notes</a></li>
<li><a href="pmd_release_notes_pmd7.html">Release notes (PMD 7)</a></li>
<li><a href="pmd_about_help.html">Getting help</a></li>
<li><a href="pmd_about_release_policies.html">Release policies</a></li>
<li><a href="pmd_about_support_lifecycle.html">Support lifecycle</a></li>
</ul>
</li>
<li>
<a href="#">User Documentation</a>
<ul>
<li><a href="pmd_userdocs_migrating_to_pmd7.html">Migration Guide for PMD 7</a></li>
<li><a href="pmd_userdocs_installation.html">Installation and basic CLI usage</a></li>
<li><a href="pmd_userdocs_making_rulesets.html">Making rulesets</a></li>
<li><a href="pmd_userdocs_configuring_rules.html">Configuring rules</a></li>
<li><a href="pmd_userdocs_best_practices.html">Best practices</a></li>
<li><a href="pmd_userdocs_suppressing_warnings.html">Suppressing warnings</a></li>
<li><a href="pmd_userdocs_incremental_analysis.html">Incremental analysis</a></li>
<li><a href="pmd_userdocs_cli_reference.html">PMD CLI reference</a></li>
<li><a href="pmd_userdocs_report_formats.html">PMD Report formats</a></li>
<li><a href="pmd_userdocs_3rdpartyrulesets.html">3rd party rulesets</a></li>
<li class="subfolders">
<a href="#">CPD reference</a>
<ul>
<li><a href="pmd_userdocs_cpd.html">Copy-paste detection</a></li>
<li><a href="pmd_userdocs_cpd_report_formats.html">CPD Report formats</a></li>
</ul>
</li>
<li class="subfolders">
<a href="#">Extending PMD</a>
<ul>
<li><a href="pmd_userdocs_extending_writing_rules_intro.html">Introduction to writing rules</a></li>
<li><a href="pmd_userdocs_extending_your_first_rule.html">Your first rule</a></li>
<li><a href="pmd_userdocs_extending_writing_xpath_rules.html">XPath rules</a></li>
<li><a href="pmd_userdocs_extending_writing_java_rules.html">Java rules</a></li>
<li><a href="pmd_userdocs_extending_designer_reference.html">Rule designer reference</a></li>
<li><a href="pmd_userdocs_extending_defining_properties.html">Defining rule properties</a></li>
<li><a href="pmd_userdocs_extending_rule_guidelines.html">Rule guidelines</a></li>
<li><a href="pmd_userdocs_extending_testing.html">Testing your rules</a></li>
<li><a href="pmd_userdocs_extending_ast_dump.html">Creating (XML) dump of the AST</a></li>
</ul>
</li>
<li class="subfolders">
<a href="#">Tools / Integrations</a>
<ul>
<li class="active"><a href="pmd_userdocs_tools_maven.html">Maven PMD Plugin</a></li>
<li><a href="pmd_userdocs_tools_gradle.html">Gradle</a></li>
<li><a href="pmd_userdocs_tools_ant.html">Ant</a></li>
<li><a href="pmd_userdocs_tools_java_api.html">PMD Java API</a></li>
<li><a href="pmd_userdocs_tools_bld.html">bld PMD Extension</a></li>
<li><a href="pmd_userdocs_tools_ci.html">CI integrations</a></li>
<li><a href="pmd_userdocs_tools.html">Other Tools / Integrations</a></li>
</ul>
</li>
</ul>
</li>
<li>
<a href="#">Rule Reference</a>
<ul>
<li class="subfolders">
<a href="#">Apex Rules</a>
<ul>
<li><a href="pmd_rules_apex.html">Index</a></li>
<li><a href="pmd_rules_apex_bestpractices.html">Best Practices</a></li>
<li><a href="pmd_rules_apex_codestyle.html">Code Style</a></li>
<li><a href="pmd_rules_apex_design.html">Design</a></li>
<li><a href="pmd_rules_apex_documentation.html">Documentation</a></li>
<li><a href="pmd_rules_apex_errorprone.html">Error Prone</a></li>
<li><a href="pmd_rules_apex_performance.html">Performance</a></li>
<li><a href="pmd_rules_apex_security.html">Security</a></li>
</ul>
</li>
<li class="subfolders">
<a href="#">HTML Rules</a>
<ul>
<li><a href="pmd_rules_html.html">Index</a></li>
<li><a href="pmd_rules_html_bestpractices.html">Best Practices</a></li>
</ul>
</li>
<li class="subfolders">
<a href="#">Java Rules</a>
<ul>
<li><a href="pmd_rules_java.html">Index</a></li>
<li><a href="pmd_rules_java_bestpractices.html">Best Practices</a></li>
<li><a href="pmd_rules_java_codestyle.html">Code Style</a></li>
<li><a href="pmd_rules_java_design.html">Design</a></li>
<li><a href="pmd_rules_java_documentation.html">Documentation</a></li>
<li><a href="pmd_rules_java_errorprone.html">Error Prone</a></li>
<li><a href="pmd_rules_java_multithreading.html">Multithreading</a></li>
<li><a href="pmd_rules_java_performance.html">Performance</a></li>
<li><a href="pmd_rules_java_security.html">Security</a></li>
</ul>
</li>
<li class="subfolders">
<a href="#">Java Server Pages Rules</a>
<ul>
<li><a href="pmd_rules_jsp.html">Index</a></li>
<li><a href="pmd_rules_jsp_bestpractices.html">Best Practices</a></li>
<li><a href="pmd_rules_jsp_codestyle.html">Code Style</a></li>
<li><a href="pmd_rules_jsp_design.html">Design</a></li>
<li><a href="pmd_rules_jsp_errorprone.html">Error Prone</a></li>
<li><a href="pmd_rules_jsp_security.html">Security</a></li>
</ul>
</li>
<li class="subfolders">
<a href="#">JavaScript Rules</a>
<ul>
<li><a href="pmd_rules_ecmascript.html">Index</a></li>
<li><a href="pmd_rules_ecmascript_bestpractices.html">Best Practices</a></li>
<li><a href="pmd_rules_ecmascript_codestyle.html">Code Style</a></li>
<li><a href="pmd_rules_ecmascript_errorprone.html">Error Prone</a></li>
<li><a href="pmd_rules_ecmascript_performance.html">Performance</a></li>
</ul>
</li>
<li class="subfolders">
<a href="#">Kotlin Rules</a>
<ul>
<li><a href="pmd_rules_kotlin.html">Index</a></li>
<li><a href="pmd_rules_kotlin_bestpractices.html">Best Practices</a></li>
<li><a href="pmd_rules_kotlin_errorprone.html">Error Prone</a></li>
</ul>
</li>
<li class="subfolders">
<a href="#">Maven POM Rules</a>
<ul>
<li><a href="pmd_rules_pom.html">Index</a></li>
<li><a href="pmd_rules_pom_errorprone.html">Error Prone</a></li>
</ul>
</li>
<li class="subfolders">
<a href="#">Modelica Rules</a>
<ul>
<li><a href="pmd_rules_modelica.html">Index</a></li>
<li><a href="pmd_rules_modelica_bestpractices.html">Best Practices</a></li>
</ul>
</li>
<li class="subfolders">
<a href="#">PLSQL Rules</a>
<ul>
<li><a href="pmd_rules_plsql.html">Index</a></li>
<li><a href="pmd_rules_plsql_bestpractices.html">Best Practices</a></li>
<li><a href="pmd_rules_plsql_codestyle.html">Code Style</a></li>
<li><a href="pmd_rules_plsql_design.html">Design</a></li>
<li><a href="pmd_rules_plsql_errorprone.html">Error Prone</a></li>
</ul>
</li>
<li class="subfolders">
<a href="#">Salesforce Visualforce Rules</a>
<ul>
<li><a href="pmd_rules_visualforce.html">Index</a></li>
<li><a href="pmd_rules_visualforce_security.html">Security</a></li>
</ul>
</li>
<li class="subfolders">
<a href="#">Scala Rules</a>
<ul>
<li><a href="pmd_rules_scala.html">Index</a></li>
</ul>
</li>
<li class="subfolders">
<a href="#">Swift Rules</a>
<ul>
<li><a href="pmd_rules_swift.html">Index</a></li>
<li><a href="pmd_rules_swift_bestpractices.html">Best Practices</a></li>
<li><a href="pmd_rules_swift_errorprone.html">Error Prone</a></li>
</ul>
</li>
<li class="subfolders">
<a href="#">Velocity Template Language (VTL) Rules</a>
<ul>
<li><a href="pmd_rules_velocity.html">Index</a></li>
<li><a href="pmd_rules_velocity_bestpractices.html">Best Practices</a></li>
<li><a href="pmd_rules_velocity_design.html">Design</a></li>
<li><a href="pmd_rules_velocity_errorprone.html">Error Prone</a></li>
</ul>
</li>
<li class="subfolders">
<a href="#">WSDL Rules</a>
<ul>
<li><a href="pmd_rules_wsdl.html">Index</a></li>
</ul>
</li>
<li class="subfolders">
<a href="#">XML Rules</a>
<ul>
<li><a href="pmd_rules_xml.html">Index</a></li>
<li><a href="pmd_rules_xml_bestpractices.html">Best Practices</a></li>
<li><a href="pmd_rules_xml_errorprone.html">Error Prone</a></li>
</ul>
</li>
<li class="subfolders">
<a href="#">XSL Rules</a>
<ul>
<li><a href="pmd_rules_xsl.html">Index</a></li>
<li><a href="pmd_rules_xsl_codestyle.html">Code Style</a></li>
<li><a href="pmd_rules_xsl_performance.html">Performance</a></li>
</ul>
</li>
</ul>
</li>
<li>
<a href="#">Language-Specific Documentation</a>
<ul>
<li><a href="pmd_languages_index.html">Overview</a></li>
<li><a href="pmd_languages_configuration.html">Language configuration</a></li>
<li><a href="pmd_languages_apex.html">Apex</a></li>
<li><a href="pmd_languages_cpp.html">C/C++</a></li>
<li><a href="pmd_languages_cs.html">C#</a></li>
<li><a href="pmd_languages_coco.html">Coco</a></li>
<li><a href="pmd_languages_dart.html">Dart</a></li>
<li><a href="pmd_languages_fortran.html">Fortran</a></li>
<li><a href="pmd_languages_gherkin.html">Gherkin</a></li>
<li><a href="pmd_languages_go.html">Go</a></li>
<li><a href="pmd_languages_html.html">HTML</a></li>
<li><a href="pmd_languages_java.html">Java</a></li>
<li><a href="pmd_languages_js_ts.html">JavaScript / TypeScript</a></li>
<li><a href="pmd_languages_jsp.html">JSP</a></li>
<li><a href="pmd_languages_julia.html">Julia</a></li>
<li><a href="pmd_languages_kotlin.html">Kotlin</a></li>
<li><a href="pmd_languages_lua.html">Lua</a></li>
<li><a href="pmd_languages_matlab.html">Matlab</a></li>
<li><a href="pmd_languages_modelica.html">Modelica</a></li>
<li><a href="pmd_languages_objectivec.html">Objective-C</a></li>
<li><a href="pmd_languages_perl.html">Perl</a></li>
<li><a href="pmd_languages_php.html">PHP</a></li>
<li><a href="pmd_languages_plsql.html">PLSQL</a></li>
<li><a href="pmd_languages_python.html">Python</a></li>
<li><a href="pmd_languages_ruby.html">Ruby</a></li>
<li><a href="pmd_languages_scala.html">Scala</a></li>
<li><a href="pmd_languages_swift.html">Swift</a></li>
<li><a href="pmd_languages_tsql.html">T-SQL</a></li>
<li><a href="pmd_languages_visualforce.html">Visualforce</a></li>
<li><a href="pmd_languages_velocity.html">Velocity Template Language (VTL)</a></li>
<li><a href="pmd_languages_xml.html">XML and XML dialects</a></li>
</ul>
</li>
<li>
<a href="#">Developer Documentation</a>
<ul>
<li><a href="pmd_devdocs_development.html">Developer resources</a></li>
<li><a href="pmd_devdocs_building.html">Building PMD from source</a></li>
<li><a href="https://github.com/pmd/pmd/blob/main/CONTRIBUTING.md" target="_blank">Contributing</a></li>
<li><a href="pmd_devdocs_writing_documentation.html">Writing documentation</a></li>
<li><a href="pmd_devdocs_roadmap.html">Roadmap</a></li>
<li><a href="pmd_devdocs_how_pmd_works.html">How PMD works</a></li>
<li><a href="pmd_devdocs_pmdtester.html">Pmdtester</a></li>
<li><a href="pmd_devdocs_rule_deprecation_policy.html">Rule Deprecation Policy</a></li>
<li class="subfolders">
<a href="#">Major contributions</a>
<ul>
<li><a href="pmd_devdocs_major_rule_guidelines.html">Rule Guidelines</a></li>
<li><a href="pmd_devdocs_major_adding_new_language_javacc.html">Adding a new language (JavaCC)</a></li>
<li><a href="pmd_devdocs_major_adding_new_language_antlr.html">Adding a new language (ANTLR)</a></li>
<li><a href="pmd_devdocs_major_adding_new_cpd_language.html">Adding a new CPD language</a></li>
</ul>
</li>
<li class="subfolders">
<a href="#">Experimental features</a>
<ul>
<li><a href="tag_experimental.html">List of experimental Features</a></li>
</ul>
</li>
</ul>
</li>
<li>
<a href="#">Project documentation</a>
<ul>
<li class="subfolders">
<a href="#">Trivia about PMD</a>
<ul>
<li><a href="pmd_projectdocs_trivia_news.html">PMD in the press</a></li>
<li><a href="pmd_projectdocs_trivia_products.html">Products & books related to PMD</a></li>
<li><a href="pmd_projectdocs_trivia_similarprojects.html">Similar projects</a></li>
<li><a href="pmd_projectdocs_trivia_meaning.html">What does 'PMD' mean?</a></li>
</ul>
</li>
<li><a href="pmd_projectdocs_logo.html">Logo</a></li>
<li><a href="pmd_projectdocs_faq.html">FAQ</a></li>
<li><a href="license.html">License</a></li>
<li><a href="pmd_projectdocs_credits.html">Credits</a></li>
<li><a href="pmd_release_notes_old.html">Old release notes</a></li>
<li><a href="pmd_projectdocs_decisions.html">Decisions</a></li>
<li class="subfolders">
<a href="#">Project management</a>
<ul>
<li><a href="pmd_projectdocs_committers_infrastructure.html">Infrastructure</a></li>
<li><a href="pmd_projectdocs_committers_releasing.html">Release process</a></li>
<li><a href="pmd_projectdocs_committers_merging_pull_requests.html">Merging pull requests</a></li>
<li><a href="pmd_projectdocs_committers_main_landing_page.html">Main Landing page</a></li>
</ul>
</li>
</ul>
</li>
</ul>
</div>
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» Maven PMD Plugin
<a
target="_blank"
href="https://github.com/pmd/pmd/blob/main/docs/pages/pmd/userdocs/tools/maven.md"
class="float-right"
role="button"
><i class="fab fa-github fa-lg"></i> Edit on GitHub</a
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<div class="post-header">
<h1 class="post-title-main">Maven PMD Plugin</h1>
</div>
<div class="post-content" data-github-edit-url="https://github.com/pmd/pmd/blob/main/docs/pages/pmd/userdocs/tools/maven.md">
<details id="inline-toc-details">
<summary>Table of Contents</summary>
<div id="inline-toc"><!-- empty, move TOC here when screen size too small --></div>
</details>
<h2 id="maven-2-and-3">Maven 2 and 3</h2>
<h3 id="running-the-pmd-plugin">Running the pmd plugin</h3>
<h4 id="choosing-the-plugin-version">Choosing the plugin version</h4>
<p>When adding the maven-pmd-plugin to your pom.xml, you need to select a version. To figure out the
latest available version, have a look at the official <a href="https://maven.apache.org/plugins/maven-pmd-plugin/">maven-pmd-plugin documentation</a>.</p>
<p>As of June 2024 (7.3.0), the current plugin version is <strong>3.23.0</strong>.</p>
<p>The version of the plugin should be specified in <code class="language-plaintext highlighter-rouge">&lt;build&gt;&lt;pluginManagement/&gt;&lt;/build&gt;</code> and if using the project
report additionally in <code class="language-plaintext highlighter-rouge">&lt;reporting&gt;&lt;plugins/&gt;&lt;/reporting&gt;</code> elements. Here’s an example for the pluginManagement
section:</p>
<div class="language-xml highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="nt">&lt;build&gt;</span>
<span class="nt">&lt;pluginManagement&gt;</span>
<span class="nt">&lt;plugins&gt;</span>
<span class="nt">&lt;plugin&gt;</span>
<span class="nt">&lt;groupId&gt;</span>org.apache.maven.plugins<span class="nt">&lt;/groupId&gt;</span>
<span class="nt">&lt;artifactId&gt;</span>maven-pmd-plugin<span class="nt">&lt;/artifactId&gt;</span>
<span class="nt">&lt;version&gt;</span>3.23.0<span class="nt">&lt;/version&gt;</span>
<span class="nt">&lt;/plugin&gt;</span>
<span class="nt">&lt;/plugins&gt;</span>
<span class="nt">&lt;/pluginManagement&gt;</span>
<span class="nt">&lt;/build&gt;</span>
</code></pre></div></div>
<p>When defining the version in the pluginManagment section, then it doesn’t need to be specified in the normal plugins
section. However, it should additionally be specified in the reporting section.</p>
<p>More information, see <a href="https://maven.apache.org/guides/mini/guide-configuring-plugins.html">Guide to Configuring Plugin-ins</a>.</p>
<h4 id="generating-a-project-report">Generating a project report</h4>
<p>To include the PMD report in the project reports section add the following lines under
the reports element in your pom.xml:</p>
<div class="language-xml highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="nt">&lt;project&gt;</span>
...
<span class="nt">&lt;reporting&gt;</span>
<span class="nt">&lt;plugins&gt;</span>
<span class="nt">&lt;plugin&gt;</span>
<span class="nt">&lt;groupId&gt;</span>org.apache.maven.plugins<span class="nt">&lt;/groupId&gt;</span>
<span class="nt">&lt;artifactId&gt;</span>maven-pmd-plugin<span class="nt">&lt;/artifactId&gt;</span>
<span class="nt">&lt;version&gt;</span>3.23.0<span class="nt">&lt;/version&gt;</span>
<span class="nt">&lt;/plugin&gt;</span>
<span class="nt">&lt;/plugins&gt;</span>
<span class="nt">&lt;/reporting&gt;</span>
...
<span class="nt">&lt;/project&gt;</span>
</code></pre></div></div>
<p>This will add an entry to the ‘project reports’ section with the PMD report when you build the maven site.</p>
<h4 id="executing-pmd-manually">Executing PMD manually</h4>
<p>To run PMD on a Maven project without adding it as a report, simply run</p>
<div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight"><code>mvn compile pmd:pmd
</code></pre></div></div>
<p>The PMD plugin writes the report in XML which will then be formatted into more readable HTML.</p>
<h4 id="integrated-into-the-build-process">Integrated into the build process</h4>
<p>You can also run PMD automatically when building your project. You even let the build fail, if
PMD finds some violations. Therefore the <code class="language-plaintext highlighter-rouge">check</code> goal is used:</p>
<div class="language-xml highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="nt">&lt;project&gt;</span>
...
<span class="nt">&lt;build&gt;</span>
<span class="nt">&lt;plugins&gt;</span>
<span class="nt">&lt;plugin&gt;</span>
<span class="nt">&lt;groupId&gt;</span>org.apache.maven.plugins<span class="nt">&lt;/groupId&gt;</span>
<span class="nt">&lt;artifactId&gt;</span>maven-pmd-plugin<span class="nt">&lt;/artifactId&gt;</span>
<span class="nt">&lt;version&gt;</span>3.23.0<span class="nt">&lt;/version&gt;</span> <span class="c">&lt;!-- or use version from pluginManagement --&gt;</span>
<span class="nt">&lt;configuration&gt;</span>
<span class="c">&lt;!-- failOnViolation is actually true by default, but can be disabled --&gt;</span>
<span class="nt">&lt;failOnViolation&gt;</span>true<span class="nt">&lt;/failOnViolation&gt;</span>
<span class="c">&lt;!-- printFailingErrors is pretty useful --&gt;</span>
<span class="nt">&lt;printFailingErrors&gt;</span>true<span class="nt">&lt;/printFailingErrors&gt;</span>
<span class="nt">&lt;/configuration&gt;</span>
<span class="nt">&lt;executions&gt;</span>
<span class="nt">&lt;execution&gt;</span>
<span class="nt">&lt;goals&gt;</span>
<span class="nt">&lt;goal&gt;</span>check<span class="nt">&lt;/goal&gt;</span>
<span class="nt">&lt;/goals&gt;</span>
<span class="nt">&lt;/execution&gt;</span>
<span class="nt">&lt;/executions&gt;</span>
<span class="nt">&lt;/plugin&gt;</span>
<span class="nt">&lt;/plugins&gt;</span>
<span class="nt">&lt;/build&gt;</span>
...
<span class="nt">&lt;/project&gt;</span>
</code></pre></div></div>
<p>This will run PMD automatically during the <code class="language-plaintext highlighter-rouge">verify</code> phase of the build. You can additionally run CPD, if
you add <code class="language-plaintext highlighter-rouge">cpd-check</code> as a goal.</p>
<h3 id="customization">Customization</h3>
<h4 id="changing-rulesets">Changing rulesets</h4>
<p>To specify a ruleset, simply edit the previous configuration:</p>
<div class="language-xml highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="nt">&lt;reporting&gt;</span>
<span class="nt">&lt;plugins&gt;</span>
<span class="nt">&lt;plugin&gt;</span>
<span class="nt">&lt;groupId&gt;</span>org.apache.maven.plugins<span class="nt">&lt;/groupId&gt;</span>
<span class="nt">&lt;artifactId&gt;</span>maven-pmd-plugin<span class="nt">&lt;/artifactId&gt;</span>
<span class="nt">&lt;version&gt;</span>3.23.0<span class="nt">&lt;/version&gt;</span>
<span class="nt">&lt;configuration&gt;</span>
<span class="nt">&lt;rulesets&gt;</span>
<span class="nt">&lt;ruleset&gt;</span>/rulesets/java/quickstart.xml<span class="nt">&lt;/ruleset&gt;</span>
<span class="nt">&lt;ruleset&gt;</span>d:\rulesets\my-ruleset.xml<span class="nt">&lt;/ruleset&gt;</span>
<span class="nt">&lt;ruleset&gt;</span>http://localhost/design.xml<span class="nt">&lt;/ruleset&gt;</span>
<span class="nt">&lt;/rulesets&gt;</span>
<span class="nt">&lt;/configuration&gt;</span>
<span class="nt">&lt;/plugin&gt;</span>
<span class="nt">&lt;/plugins&gt;</span>
<span class="nt">&lt;/reporting&gt;</span>
</code></pre></div></div>
<p>The value of the ‘ruleset’ element can either be a relative address, an absolute address or even an url.</p>
<p>A clean strategy for customizing which rules to use for a project is to write a ruleset file.
In this file you can define which rules to use, add custom rules, and
customizing which rules to include/exclude from official rulesets. More information on
writing a ruleset can be found <a href="pmd_userdocs_making_rulesets.html">here</a>.
Note that if you include other rulesets in your own rulesets, you have to be sure that the plugin
will be able to resolve those other ruleset references.</p>
<h4 id="enabling-incremental-analysis">Enabling Incremental Analysis</h4>
<p>When using the Maven PMD plugin 3.8 or later along with PMD 5.6.0 or later, you can enable incremental analysis to
speed up PMD’s execution while retaining the quality of the analysis. You can additionally customize where the cache is stored::</p>
<div class="language-xml highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="nt">&lt;plugin&gt;</span>
<span class="nt">&lt;groupId&gt;</span>org.apache.maven.plugins<span class="nt">&lt;/groupId&gt;</span>
<span class="nt">&lt;artifactId&gt;</span>maven-pmd-plugin<span class="nt">&lt;/artifactId&gt;</span>
<span class="nt">&lt;version&gt;</span>3.23.0<span class="nt">&lt;/version&gt;</span> <span class="c">&lt;!-- or use version from pluginManagement --&gt;</span>
<span class="nt">&lt;configuration&gt;</span>
<span class="c">&lt;!-- enable incremental analysis --&gt;</span>
<span class="nt">&lt;analysisCache&gt;</span>true<span class="nt">&lt;/analysisCache&gt;</span>
<span class="c">&lt;!-- analysisCacheLocation: optional - points to the following location by default --&gt;</span>
<span class="nt">&lt;analysisCacheLocation&gt;</span>${project.build.directory}/pmd/pmd.cache<span class="nt">&lt;/analysisCacheLocation&gt;</span>
<span class="nt">&lt;/configuration&gt;</span>
<span class="nt">&lt;/plugin&gt;</span>
</code></pre></div></div>
<h4 id="other-configurations">Other configurations</h4>
<p>The Maven PMD plugin allows you to configure CPD, targetJDK, and the use of XRef to link
the report to html source files, and the file encoding:</p>
<div class="language-xml highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="nt">&lt;plugin&gt;</span>
<span class="nt">&lt;groupId&gt;</span>org.apache.maven.plugins<span class="nt">&lt;/groupId&gt;</span>
<span class="nt">&lt;artifactId&gt;</span>maven-pmd-plugin<span class="nt">&lt;/artifactId&gt;</span>
<span class="nt">&lt;version&gt;</span>3.23.0<span class="nt">&lt;/version&gt;</span> <span class="c">&lt;!-- or use version from pluginManagement --&gt;</span>
<span class="nt">&lt;configuration&gt;</span>
<span class="nt">&lt;linkXRef&gt;</span>true<span class="nt">&lt;/linkXRef&gt;</span>
<span class="nt">&lt;sourceEncoding&gt;</span>ISO-8859-1<span class="nt">&lt;/sourceEncoding&gt;</span>
<span class="nt">&lt;minimumTokens&gt;</span>30<span class="nt">&lt;/minimumTokens&gt;</span>
<span class="nt">&lt;targetJdk&gt;</span>1.4<span class="nt">&lt;/targetJdk&gt;</span>
<span class="nt">&lt;/configuration&gt;</span>
<span class="nt">&lt;/plugin&gt;</span>
</code></pre></div></div>
<h4 id="upgrading-the-pmd-version-at-runtime">Upgrading the PMD version at runtime</h4>
<p>The Maven PMD plugin comes with a specific PMD version, which is documented on the
<a href="https://maven.apache.org/plugins/maven-pmd-plugin/index.html">plugin project page</a>.</p>
<p>Given that the newer PMD version is compatible, you can override the PMD version, that the
Maven plugin will use and benefit from the latest bugfixes and enhancements:</p>
<div class="language-xml highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="nt">&lt;project&gt;</span>
<span class="nt">&lt;properties&gt;</span>
<span class="nt">&lt;pmdVersion&gt;</span>...choose your version...<span class="nt">&lt;/pmdVersion&gt;</span>
<span class="nt">&lt;/properties&gt;</span>
...
<span class="nt">&lt;build&gt;</span>
<span class="nt">&lt;pluginManagement&gt;</span>
<span class="nt">&lt;plugins&gt;</span>
<span class="nt">&lt;plugin&gt;</span>
<span class="nt">&lt;groupId&gt;</span>org.apache.maven.plugins<span class="nt">&lt;/groupId&gt;</span>
<span class="nt">&lt;artifactId&gt;</span>maven-pmd-plugin<span class="nt">&lt;/artifactId&gt;</span>
<span class="nt">&lt;version&gt;</span>3.23.0<span class="nt">&lt;/version&gt;</span>
<span class="nt">&lt;dependencies&gt;</span>
<span class="nt">&lt;dependency&gt;</span>
<span class="nt">&lt;groupId&gt;</span>net.sourceforge.pmd<span class="nt">&lt;/groupId&gt;</span>
<span class="nt">&lt;artifactId&gt;</span>pmd-core<span class="nt">&lt;/artifactId&gt;</span>
<span class="nt">&lt;version&gt;</span>${pmdVersion}<span class="nt">&lt;/version&gt;</span>
<span class="nt">&lt;/dependency&gt;</span>
<span class="nt">&lt;dependency&gt;</span>
<span class="nt">&lt;groupId&gt;</span>net.sourceforge.pmd<span class="nt">&lt;/groupId&gt;</span>
<span class="nt">&lt;artifactId&gt;</span>pmd-java<span class="nt">&lt;/artifactId&gt;</span>
<span class="nt">&lt;version&gt;</span>${pmdVersion}<span class="nt">&lt;/version&gt;</span>
<span class="nt">&lt;/dependency&gt;</span>
<span class="nt">&lt;dependency&gt;</span>
<span class="nt">&lt;groupId&gt;</span>net.sourceforge.pmd<span class="nt">&lt;/groupId&gt;</span>
<span class="nt">&lt;artifactId&gt;</span>pmd-javascript<span class="nt">&lt;/artifactId&gt;</span>
<span class="nt">&lt;version&gt;</span>${pmdVersion}<span class="nt">&lt;/version&gt;</span>
<span class="nt">&lt;/dependency&gt;</span>
<span class="nt">&lt;dependency&gt;</span>
<span class="nt">&lt;groupId&gt;</span>net.sourceforge.pmd<span class="nt">&lt;/groupId&gt;</span>
<span class="nt">&lt;artifactId&gt;</span>pmd-jsp<span class="nt">&lt;/artifactId&gt;</span>
<span class="nt">&lt;version&gt;</span>${pmdVersion}<span class="nt">&lt;/version&gt;</span>
<span class="nt">&lt;/dependency&gt;</span>
<span class="nt">&lt;/dependencies&gt;</span>
<span class="nt">&lt;/plugin&gt;</span>
<span class="nt">&lt;/plugins&gt;</span>
<span class="nt">&lt;/pluginManagement&gt;</span>
<span class="nt">&lt;/build&gt;</span>
...
<span class="nt">&lt;/project&gt;</span>
</code></pre></div></div>
<h4 id="using-pmd-7-with-maven-pmd-plugin">Using PMD 7 with maven-pmd-plugin</h4>
<p>Since version 3.22.0 (<a href="https://issues.apache.org/jira/browse/MPMD-379">MPMD-379</a>), maven-pmd-plugin uses
by default now PMD 7.0.0 and no extra configuration is required.</p>
<p>The specific PMD version used by maven-pmd-plugin might change. The exact version is documented on the
<a href="https://maven.apache.org/plugins/maven-pmd-plugin/index.html">plugin project page</a>.</p>
<p>In order to use newer versions of PMD 7, you can simply follow the guide
<a href="https://maven.apache.org/plugins/maven-pmd-plugin/examples/upgrading-PMD-at-runtime.html">Upgrading PMD at Runtime</a>.</p>
<p>Note: If you upgrade from Maven PMD Plugin before 3.22.0 you are most likely updating from PMD 6 to PMD 7.
This upgrade is a major version change. If you use the default ruleset from Maven PMD Plugin, then everything should
just work. But if you use a custom ruleset, you most likely need to review your ruleset and migrate it to PMD 7.
Rules might have been renamed or replaced. See <a href="pmd_release_notes_pmd7.html">Detailed Release Notes for PMD 7</a>
and <a href="pmd_userdocs_migrating_to_pmd7.html">Migration Guide for PMD 7</a>.</p>
<p>As PMD 7 revamped the Java module, if you have custom rules, you need to migrate these rules.
See the use case <a href="pmd_userdocs_migrating_to_pmd7.html#im-using-custom-rules">I’m using custom rules</a>
in the Migration Guide.</p>
<h3 id="reference">Reference</h3>
<p>For more information, please see the well documented PMD plugin project page here:
<a href="http://maven.apache.org/plugins/maven-pmd-plugin/index.html">http://maven.apache.org/plugins/maven-pmd-plugin/index.html</a>.
Also, the bug tracker for this plugin is <a href="https://issues.apache.org/jira/browse/MPMD">MPMD</a>.</p>
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