eff825bed7
TRAVIS_JOB_NUMBER=3428.2 TRAVIS_COMMIT_RANGE=be73856c7c7974d00388f9728beeefd35370aaf8...cfe07822be49311797a539a9b3cffb4de4fb512e
1874 lines
60 KiB
HTML
1874 lines
60 KiB
HTML
<!DOCTYPE html>
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<html>
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<head>
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<meta charset="utf-8">
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<meta http-equiv="X-UA-Compatible" content="IE=edge">
|
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<meta name="viewport" content="width=device-width, initial-scale=1">
|
||
<meta name="description" content="Rules to detect constructs that are either broken, extremely confusing or prone to runtime errors.">
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<meta name="keywords" content=" Error Prone, AvoidDirectAccessTriggerMap, AvoidHardcodingId, EmptyCatchBlock, EmptyIfStmt, EmptyStatementBlock, EmptyTryOrFinallyBlock, EmptyWhileStmt, MethodWithSameNameAsEnclosingClass, AvoidNonExistentAnnotations">
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<title>Error Prone | PMD Source Code Analyzer</title>
|
||
<link rel="stylesheet" href="css/syntax.css">
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|
||
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<link rel="stylesheet" type="text/css" href="https://maxcdn.bootstrapcdn.com/font-awesome/4.5.0/css/font-awesome.min.css">
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<!--<link rel="stylesheet" type="text/css" href="css/bootstrap.min.css">-->
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||
<link rel="stylesheet" href="css/modern-business.css">
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||
<link rel="stylesheet" href="css/lavish-bootstrap.css">
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||
<link rel="stylesheet" href="css/customstyles.css">
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||
<link rel="stylesheet" href="css/theme-blue.css">
|
||
<link rel="stylesheet" href="css/pmd-customstyles.css">
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||
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<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/2.1.4/jquery.min.js"></script>
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<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery-cookie/1.4.1/jquery.cookie.min.js"></script>
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||
<script src="js/jquery.navgoco.min.js"></script>
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<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.4/js/bootstrap.min.js"></script>
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||
<script src="https://cdnjs.cloudflare.com/ajax/libs/anchor-js/2.0.0/anchor.min.js"></script>
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||
<script src="js/toc.js"></script>
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||
<script src="js/customscripts.js"></script>
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||
|
||
<link rel="shortcut icon" href="images/favicon.ico" type="image/x-icon">
|
||
<link rel="icon" href="images/favicon.ico" type="image/x-icon">
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||
|
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<!-- HTML5 Shim and Respond.js IE8 support of HTML5 elements and media queries -->
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<!-- WARNING: Respond.js doesn't work if you view the page via file:// -->
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<!--[if lt IE 9]>
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<script src="https://oss.maxcdn.com/libs/html5shiv/3.7.0/html5shiv.js"></script>
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<script src="https://oss.maxcdn.com/libs/respond.js/1.4.2/respond.min.js"></script>
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<![endif]-->
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<link rel="alternate" type="application/rss+xml" title="" href="https://pmd.github.io/pmd/feed.xml">
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<script>
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||
$(document).ready(function() {
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// Initialize navgoco with default options
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$("#mysidebar").navgoco({
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||
caretHtml: '',
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||
accordion: true,
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||
openClass: 'active', // open
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||
save: false, // leave false or nav highlighting doesn't work right
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cookie: {
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||
name: 'navgoco',
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||
expires: false,
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path: '/'
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||
},
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||
slide: {
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||
duration: 400,
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||
easing: 'swing'
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||
}
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||
});
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|
||
$("#collapseAll").click(function(e) {
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||
e.preventDefault();
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||
$("#mysidebar").navgoco('toggle', false);
|
||
});
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|
||
$("#expandAll").click(function(e) {
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||
e.preventDefault();
|
||
$("#mysidebar").navgoco('toggle', true);
|
||
});
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||
|
||
});
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|
||
</script>
|
||
<script>
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||
$(function () {
|
||
$('[data-toggle="tooltip"]').tooltip()
|
||
})
|
||
</script>
|
||
<script>
|
||
$(document).ready(function() {
|
||
$("#tg-sb-link").click(function() {
|
||
$("#tg-sb-sidebar").toggle();
|
||
$("#tg-sb-content").toggleClass('col-md-9');
|
||
$("#tg-sb-content").toggleClass('col-md-12');
|
||
$("#tg-sb-icon").toggleClass('fa-toggle-on');
|
||
$("#tg-sb-icon").toggleClass('fa-toggle-off');
|
||
});
|
||
});
|
||
</script>
|
||
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||
|
||
</head>
|
||
<body>
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||
<!-- 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 -->
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<div id="topbar-content-offset">
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||
<!-- Navigation -->
|
||
<nav class="navbar navbar-inverse navbar-fixed-top">
|
||
<div class="container topnavlinks">
|
||
<div class="navbar-header">
|
||
<button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
|
||
<span class="sr-only">Toggle navigation</span>
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||
<span class="icon-bar"></span>
|
||
<span class="icon-bar"></span>
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<span class="icon-bar"></span>
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</button>
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<a class="fa fa-home fa-lg navbar-brand" href="index.html"> <span class="projectTitle"> PMD Source Code Analyzer Project</span></a>
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</div>
|
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<div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">
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||
<ul class="nav navbar-nav navbar-right">
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<!-- toggle sidebar button -->
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<li><a id="tg-sb-link" href="#"><i id="tg-sb-icon" class="fa fa-toggle-on"></i> Nav</a></li>
|
||
<!-- entries without drop-downs appear here -->
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|
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<li><a href="https://github.com/pmd/pmd/releases/latest" target="_blank">Download</a></li>
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||
|
||
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||
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||
<li><a href="https://github.com/pmd/pmd" target="_blank">Fork us on github</a></li>
|
||
|
||
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||
|
||
<!-- entries with drop-downs appear here -->
|
||
<!-- conditional logic to control which topnav appears for the audience defined in the configuration file.-->
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||
|
||
|
||
<!--comment out this block if you want to hide search-->
|
||
<li>
|
||
<!--start search-->
|
||
<div id="search-demo-container">
|
||
<input type="text" id="search-input" placeholder="search...">
|
||
<ul id="results-container"></ul>
|
||
</div>
|
||
<script src="js/jekyll-search.js" type="text/javascript"></script>
|
||
<script type="text/javascript">
|
||
SimpleJekyllSearch.init({
|
||
searchInput: document.getElementById('search-input'),
|
||
resultsContainer: document.getElementById('results-container'),
|
||
dataSource: 'search.json',
|
||
searchResultTemplate: '<li><a href="{url}" title="Error Prone">{title}</a></li>',
|
||
noResultsText: 'No results found.',
|
||
limit: 10,
|
||
fuzzy: true,
|
||
})
|
||
</script>
|
||
<!--end search-->
|
||
</li>
|
||
</ul>
|
||
</div>
|
||
</div>
|
||
<!-- /.container -->
|
||
</nav>
|
||
|
||
<!-- Page Content -->
|
||
<div class="container">
|
||
<div class="col-lg-12"> </div>
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||
<!-- Content Row -->
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||
<div class="row">
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||
|
||
|
||
<!-- Sidebar Column -->
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||
<div class="col-md-3" id="tg-sb-sidebar">
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||
|
||
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||
|
||
|
||
|
||
|
||
|
||
<ul id="mysidebar" class="nav">
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||
<li class="sidebarTitle">PMD 6.12.0</li>
|
||
|
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|
||
|
||
|
||
|
||
<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_next_major_development.html">PMD 7.0.0 development</a></li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li><a href="pmd_about_help.html">Getting help</a></li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
</ul>
|
||
</li>
|
||
|
||
|
||
|
||
<li>
|
||
|
||
<a href="#">User Documentation</a>
|
||
|
||
<ul>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<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 class="subfolders">
|
||
<a href="#">Extending PMD</a>
|
||
<ul>
|
||
|
||
|
||
|
||
<li><a href="pmd_userdocs_extending_writing_pmd_rules.html">Writing a rule</a></li>
|
||
|
||
|
||
|
||
|
||
|
||
<li><a href="pmd_userdocs_extending_writing_xpath_rules.html">Writing XPath rules</a></li>
|
||
|
||
|
||
|
||
|
||
|
||
<li><a href="pmd_userdocs_extending_defining_properties.html">Defining rule properties</a></li>
|
||
|
||
|
||
|
||
|
||
|
||
<li><a href="pmd_userdocs_extending_metrics_howto.html">Using and defining code metrics</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>
|
||
|
||
|
||
|
||
</ul>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li><a href="pmd_userdocs_cpd.html">Copy-paste detection</a></li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="subfolders">
|
||
<a href="#">Tools / Integrations</a>
|
||
<ul>
|
||
|
||
|
||
|
||
<li><a href="pmd_userdocs_tools_maven.html">Maven PMD plugin</a></li>
|
||
|
||
|
||
|
||
|
||
|
||
<li><a href="pmd_userdocs_tools_ant.html">Ant</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 class="active"><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="#">Ecmascript 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>
|
||
|
||
|
||
|
||
</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="#">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="#">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_vf.html">Index</a></li>
|
||
|
||
|
||
|
||
|
||
|
||
<li><a href="pmd_rules_vf_security.html">Security</a></li>
|
||
|
||
|
||
|
||
</ul>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="subfolders">
|
||
<a href="#">VM Rules</a>
|
||
<ul>
|
||
|
||
|
||
|
||
<li><a href="pmd_rules_vm.html">Index</a></li>
|
||
|
||
|
||
|
||
|
||
|
||
<li><a href="pmd_rules_vm_bestpractices.html">Best Practices</a></li>
|
||
|
||
|
||
|
||
|
||
|
||
<li><a href="pmd_rules_vm_design.html">Design</a></li>
|
||
|
||
|
||
|
||
|
||
|
||
<li><a href="pmd_rules_vm_errorprone.html">Error Prone</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_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>
|
||
|
||
|
||
|
||
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|
||
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|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
</ul>
|
||
</li>
|
||
|
||
|
||
|
||
<li>
|
||
|
||
<a href="#">Language Specific Documentation</a>
|
||
|
||
<ul>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li><a href="pmd_languages_jsp.html">JSP Support</a></li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li><a href="pmd_java_metrics_index.html">Java code metrics</a></li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li><a href="pmd_apex_metrics_index.html">Apex code metrics</a></li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
</ul>
|
||
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|
||
|
||
|
||
|
||
<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/master/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>
|
||
|
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|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li><a href="pmd_devdocs_how_pmd_works.html">How PMD works</a></li>
|
||
|
||
|
||
|
||
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||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li><a href="pmd_devdocs_pmdtester.html">Pmdtester</a></li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="subfolders">
|
||
<a href="#">Major contributions</a>
|
||
<ul>
|
||
|
||
|
||
|
||
<li><a href="pmd_devdocs_major_adding_new_language.html">Adding a new language</a></li>
|
||
|
||
|
||
|
||
|
||
|
||
<li><a href="pmd_devdocs_major_adding_new_cpd_language.html">Adding a new CPD language</a></li>
|
||
|
||
|
||
|
||
|
||
|
||
<li><a href="pmd_devdocs_major_adding_new_metrics_framework.html">Adding metrics support to a language</a></li>
|
||
|
||
|
||
|
||
</ul>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
</ul>
|
||
</li>
|
||
|
||
|
||
|
||
<li>
|
||
|
||
<a href="#">Project documentation</a>
|
||
|
||
<ul>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="subfolders">
|
||
<a href="#">Trivia about PMD</a>
|
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<ul>
|
||
|
||
|
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|
||
<li><a href="pmd_projectdocs_trivia_news.html">PMD in the press</a></li>
|
||
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|
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|
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|
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<li><a href="pmd_projectdocs_trivia_products.html">Products & books related to PMD</a></li>
|
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||
|
||
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|
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|
||
<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>
|
||
|
||
|
||
|
||
|
||
|
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|
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|
||
|
||
|
||
|
||
|
||
<li><a href="pmd_projectdocs_faq.html">FAQ</a></li>
|
||
|
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|
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|
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|
||
|
||
<li><a href="pmd_projectdocs_credits.html">Credits</a></li>
|
||
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|
||
|
||
|
||
|
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|
||
|
||
|
||
|
||
|
||
|
||
<li><a href="pmd_release_notes_old.html">Old release notes</a></li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
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|
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|
||
<li class="subfolders">
|
||
<a href="#">Project management</a>
|
||
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|
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|
||
|
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|
||
<li><a href="pmd_projectdocs_committers_releasing.html">Release process</a></li>
|
||
|
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|
||
|
||
|
||
|
||
<li><a href="pmd_projectdocs_committers_merging_pull_requests.html">Merging pull requests</a></li>
|
||
|
||
|
||
|
||
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|
||
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|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
</ul>
|
||
</li>
|
||
|
||
|
||
|
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<!-- if you aren't using the accordion, uncomment this block:
|
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|
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|
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<!-- Content Column -->
|
||
<div class="col-md-9" id="tg-sb-content">
|
||
<div class="post-header">
|
||
<h1 class="post-title-main">Error Prone</h1>
|
||
</div>
|
||
|
||
|
||
|
||
<div class="post-content">
|
||
|
||
|
||
<div class="summary">Rules to detect constructs that are either broken, extremely confusing or prone to runtime errors.</div>
|
||
|
||
|
||
|
||
|
||
<!-- this handles the automatic toc. use ## for subheads to auto-generate the on-page minitoc. if you use html tags, you must supply an ID for the heading element in order for it to appear in the minitoc. -->
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<div id="toc"></div>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<a target="_blank" href="https://github.com/pmd/pmd/blob/master/docs/../pmd-apex/src/main/resources/category/apex/errorprone.xml" class="btn btn-default githubEditButton" role="button"><i class="fa fa-github fa-lg"></i> Edit me</a>
|
||
|
||
|
||
|
||
<!-- DO NOT EDIT THIS FILE. This file is generated from file ../pmd-apex/src/main/resources/category/apex/errorprone.xml. -->
|
||
<h2 id="avoiddirectaccesstriggermap">AvoidDirectAccessTriggerMap</h2>
|
||
|
||
<p><strong>Since:</strong> PMD 6.0.0</p>
|
||
|
||
<p><strong>Priority:</strong> Medium (3)</p>
|
||
|
||
<p>Avoid directly accessing Trigger.old and Trigger.new as it can lead to a bug. Triggers should be bulkified and iterate through the map to handle the actions for each item separately.</p>
|
||
|
||
<p><strong>This rule is defined by the following XPath expression:</strong></p>
|
||
<div class="language-xpath highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="o">//</span><span class="nt">ArrayLoadExpression</span><span class="p">[</span><span class="nt">TriggerVariableExpression</span><span class="w"> </span><span class="ow">and</span><span class="w"> </span><span class="nt">LiteralExpression</span><span class="p">]</span><span class="w">
|
||
</span></code></pre></div></div>
|
||
|
||
<p><strong>Example(s):</strong></p>
|
||
|
||
<div class="language-java highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="n">trigger</span> <span class="n">AccountTrigger</span> <span class="n">on</span> <span class="nf">Account</span> <span class="o">(</span><span class="n">before</span> <span class="n">insert</span><span class="o">,</span> <span class="n">before</span> <span class="n">update</span><span class="o">)</span> <span class="o">{</span>
|
||
<span class="n">Account</span> <span class="n">a</span> <span class="o">=</span> <span class="n">Trigger</span><span class="o">.</span><span class="na">new</span><span class="o">[</span><span class="mi">0</span><span class="o">];</span> <span class="c1">//Bad: Accessing the trigger array directly is not recommended.</span>
|
||
|
||
<span class="n">foreach</span> <span class="o">(</span> <span class="n">Account</span> <span class="n">a</span> <span class="o">:</span> <span class="n">Trigger</span><span class="o">.</span><span class="na">new</span> <span class="o">){</span>
|
||
<span class="c1">//Good: Iterate through the trigger.new array instead.</span>
|
||
<span class="o">}</span>
|
||
<span class="o">}</span>
|
||
</code></pre></div></div>
|
||
|
||
<p><strong>This rule has the following properties:</strong></p>
|
||
|
||
<table>
|
||
<thead>
|
||
<tr>
|
||
<th>Name</th>
|
||
<th>Default Value</th>
|
||
<th>Description</th>
|
||
<th>Multivalued</th>
|
||
</tr>
|
||
</thead>
|
||
<tbody>
|
||
<tr>
|
||
<td>cc_categories</td>
|
||
<td>Style</td>
|
||
<td>Code Climate Categories</td>
|
||
<td>yes. Delimiter is ‘|’.</td>
|
||
</tr>
|
||
<tr>
|
||
<td>cc_remediation_points_multiplier</td>
|
||
<td>1</td>
|
||
<td>Code Climate Remediation Points multiplier</td>
|
||
<td>no</td>
|
||
</tr>
|
||
<tr>
|
||
<td>cc_block_highlighting</td>
|
||
<td>false</td>
|
||
<td>Code Climate Block Highlighting</td>
|
||
<td>no</td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
|
||
<p><strong>Use this rule by referencing it:</strong></p>
|
||
<div class="language-xml highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="nt"><rule</span> <span class="na">ref=</span><span class="s">"category/apex/errorprone.xml/AvoidDirectAccessTriggerMap"</span> <span class="nt">/></span>
|
||
</code></pre></div></div>
|
||
|
||
<h2 id="avoidhardcodingid">AvoidHardcodingId</h2>
|
||
|
||
<p><strong>Since:</strong> PMD 6.0.0</p>
|
||
|
||
<p><strong>Priority:</strong> Medium (3)</p>
|
||
|
||
<p>When deploying Apex code between sandbox and production environments, or installing Force.com AppExchange packages,
|
||
it is essential to avoid hardcoding IDs in the Apex code. By doing so, if the record IDs change between environments,
|
||
the logic can dynamically identify the proper data to operate against and not fail.</p>
|
||
|
||
<p><strong>This rule is defined by the following Java class:</strong> <a href="https://github.com/pmd/pmd/blob/master/pmd-apex/src/main/java/net/sourceforge/pmd/lang/apex/rule/errorprone/AvoidHardcodingIdRule.java">net.sourceforge.pmd.lang.apex.rule.errorprone.AvoidHardcodingIdRule</a></p>
|
||
|
||
<p><strong>Example(s):</strong></p>
|
||
|
||
<div class="language-java highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="kd">public</span> <span class="n">without</span> <span class="n">sharing</span> <span class="kd">class</span> <span class="nc">Foo</span> <span class="o">{</span>
|
||
<span class="kt">void</span> <span class="nf">foo</span><span class="o">()</span> <span class="o">{</span>
|
||
<span class="c1">//Error - hardcoded the record type id</span>
|
||
<span class="k">if</span><span class="o">(</span><span class="n">a</span><span class="o">.</span><span class="na">RecordTypeId</span> <span class="o">==</span> <span class="err">'</span><span class="mo">01250000000</span><span class="mi">9</span><span class="n">WAr</span><span class="err">'</span><span class="o">){</span>
|
||
<span class="c1">//do some logic here.....</span>
|
||
<span class="o">}</span> <span class="k">else</span> <span class="k">if</span><span class="o">(</span><span class="n">a</span><span class="o">.</span><span class="na">RecordTypeId</span> <span class="o">==</span> <span class="err">'</span><span class="mo">01230000000</span><span class="mi">95</span><span class="n">Km</span><span class="err">'</span><span class="o">){</span>
|
||
<span class="c1">//do some logic here for a different record type...</span>
|
||
<span class="o">}</span>
|
||
<span class="o">}</span>
|
||
<span class="o">}</span>
|
||
</code></pre></div></div>
|
||
|
||
<p><strong>This rule has the following properties:</strong></p>
|
||
|
||
<table>
|
||
<thead>
|
||
<tr>
|
||
<th>Name</th>
|
||
<th>Default Value</th>
|
||
<th>Description</th>
|
||
<th>Multivalued</th>
|
||
</tr>
|
||
</thead>
|
||
<tbody>
|
||
<tr>
|
||
<td>cc_categories</td>
|
||
<td>Style</td>
|
||
<td>Code Climate Categories</td>
|
||
<td>yes. Delimiter is ‘|’.</td>
|
||
</tr>
|
||
<tr>
|
||
<td>cc_remediation_points_multiplier</td>
|
||
<td>1</td>
|
||
<td>Code Climate Remediation Points multiplier</td>
|
||
<td>no</td>
|
||
</tr>
|
||
<tr>
|
||
<td>cc_block_highlighting</td>
|
||
<td>false</td>
|
||
<td>Code Climate Block Highlighting</td>
|
||
<td>no</td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
|
||
<p><strong>Use this rule by referencing it:</strong></p>
|
||
<div class="language-xml highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="nt"><rule</span> <span class="na">ref=</span><span class="s">"category/apex/errorprone.xml/AvoidHardcodingId"</span> <span class="nt">/></span>
|
||
</code></pre></div></div>
|
||
|
||
<h2 id="avoidnonexistentannotations">AvoidNonExistentAnnotations</h2>
|
||
|
||
<p><strong>Since:</strong> PMD 6.5.0</p>
|
||
|
||
<p><strong>Priority:</strong> Medium (3)</p>
|
||
|
||
<p>Apex supported non existent annotations for legacy reasons.
|
||
In the future, use of such non-existent annotations could result in broken apex code that will not compile.
|
||
This will prevent users of garbage annotations from being able to use legitimate annotations added to Apex in the future.
|
||
A full list of supported annotations can be found at https://developer.salesforce.com/docs/atlas.en-us.apexcode.meta/apexcode/apex_classes_annotation.htm</p>
|
||
|
||
<p><strong>This rule is defined by the following Java class:</strong> <a href="https://github.com/pmd/pmd/blob/master/pmd-apex/src/main/java/net/sourceforge/pmd/lang/apex/rule/errorprone/AvoidNonExistentAnnotationsRule.java">net.sourceforge.pmd.lang.apex.rule.errorprone.AvoidNonExistentAnnotationsRule</a></p>
|
||
|
||
<p><strong>Example(s):</strong></p>
|
||
|
||
<div class="language-java highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="nd">@NonExistentAnnotation</span> <span class="kd">public</span> <span class="kd">class</span> <span class="nc">ClassWithNonexistentAnnotation</span> <span class="o">{</span>
|
||
<span class="nd">@NonExistentAnnotation</span> <span class="kd">public</span> <span class="kt">void</span> <span class="nf">methodWithNonExistentAnnotation</span><span class="o">()</span> <span class="o">{</span>
|
||
<span class="c1">// ...</span>
|
||
<span class="o">}</span>
|
||
<span class="o">}</span>
|
||
</code></pre></div></div>
|
||
|
||
<p><strong>This rule has the following properties:</strong></p>
|
||
|
||
<table>
|
||
<thead>
|
||
<tr>
|
||
<th>Name</th>
|
||
<th>Default Value</th>
|
||
<th>Description</th>
|
||
<th>Multivalued</th>
|
||
</tr>
|
||
</thead>
|
||
<tbody>
|
||
<tr>
|
||
<td>cc_categories</td>
|
||
<td>Style</td>
|
||
<td>Code Climate Categories</td>
|
||
<td>yes. Delimiter is ‘|’.</td>
|
||
</tr>
|
||
<tr>
|
||
<td>cc_remediation_points_multiplier</td>
|
||
<td>1</td>
|
||
<td>Code Climate Remediation Points multiplier</td>
|
||
<td>no</td>
|
||
</tr>
|
||
<tr>
|
||
<td>cc_block_highlighting</td>
|
||
<td>false</td>
|
||
<td>Code Climate Block Highlighting</td>
|
||
<td>no</td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
|
||
<p><strong>Use this rule by referencing it:</strong></p>
|
||
<div class="language-xml highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="nt"><rule</span> <span class="na">ref=</span><span class="s">"category/apex/errorprone.xml/AvoidNonExistentAnnotations"</span> <span class="nt">/></span>
|
||
</code></pre></div></div>
|
||
|
||
<h2 id="emptycatchblock">EmptyCatchBlock</h2>
|
||
|
||
<p><strong>Since:</strong> PMD 6.0.0</p>
|
||
|
||
<p><strong>Priority:</strong> Medium (3)</p>
|
||
|
||
<p>Empty Catch Block finds instances where an exception is caught, but nothing is done.<br />
|
||
In most circumstances, this swallows an exception which should either be acted on
|
||
or reported.</p>
|
||
|
||
<p><strong>This rule is defined by the following XPath expression:</strong></p>
|
||
<div class="language-xpath highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="o">//</span><span class="nt">CatchBlockStatement</span><span class="p">[.</span><span class="o">/</span><span class="nt">BlockStatement</span><span class="p">[</span><span class="nf">count</span><span class="p">(</span><span class="err">*</span><span class="p">)</span><span class="w"> </span><span class="err">=</span><span class="w"> </span><span class="m">0</span><span class="p">]]</span><span class="w">
|
||
</span></code></pre></div></div>
|
||
|
||
<p><strong>Example(s):</strong></p>
|
||
|
||
<div class="language-java highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="kd">public</span> <span class="kt">void</span> <span class="nf">doSomething</span><span class="o">()</span> <span class="o">{</span>
|
||
<span class="o">...</span>
|
||
<span class="k">try</span> <span class="o">{</span>
|
||
<span class="n">insert</span> <span class="n">accounts</span><span class="o">;</span>
|
||
<span class="o">}</span> <span class="k">catch</span> <span class="o">(</span><span class="n">DmlException</span> <span class="n">dmle</span><span class="o">)</span> <span class="o">{</span>
|
||
<span class="c1">// not good</span>
|
||
<span class="o">}</span>
|
||
<span class="o">}</span>
|
||
</code></pre></div></div>
|
||
|
||
<p><strong>This rule has the following properties:</strong></p>
|
||
|
||
<table>
|
||
<thead>
|
||
<tr>
|
||
<th>Name</th>
|
||
<th>Default Value</th>
|
||
<th>Description</th>
|
||
<th>Multivalued</th>
|
||
</tr>
|
||
</thead>
|
||
<tbody>
|
||
<tr>
|
||
<td>cc_categories</td>
|
||
<td>Style</td>
|
||
<td>Code Climate Categories</td>
|
||
<td>yes. Delimiter is ‘|’.</td>
|
||
</tr>
|
||
<tr>
|
||
<td>cc_remediation_points_multiplier</td>
|
||
<td>1</td>
|
||
<td>Code Climate Remediation Points multiplier</td>
|
||
<td>no</td>
|
||
</tr>
|
||
<tr>
|
||
<td>cc_block_highlighting</td>
|
||
<td>false</td>
|
||
<td>Code Climate Block Highlighting</td>
|
||
<td>no</td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
|
||
<p><strong>Use this rule by referencing it:</strong></p>
|
||
<div class="language-xml highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="nt"><rule</span> <span class="na">ref=</span><span class="s">"category/apex/errorprone.xml/EmptyCatchBlock"</span> <span class="nt">/></span>
|
||
</code></pre></div></div>
|
||
|
||
<h2 id="emptyifstmt">EmptyIfStmt</h2>
|
||
|
||
<p><strong>Since:</strong> PMD 6.0.0</p>
|
||
|
||
<p><strong>Priority:</strong> Medium (3)</p>
|
||
|
||
<p>Empty If Statement finds instances where a condition is checked but nothing is done about it.</p>
|
||
|
||
<p><strong>This rule is defined by the following XPath expression:</strong></p>
|
||
<div class="language-xpath highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="o">//</span><span class="nt">IfBlockStatement</span><span class="w">
|
||
</span><span class="p">[</span><span class="nt">BlockStatement</span><span class="p">[</span><span class="nf">count</span><span class="p">(</span><span class="err">*</span><span class="p">)</span><span class="w"> </span><span class="err">=</span><span class="w"> </span><span class="m">0</span><span class="p">]]</span><span class="w">
|
||
</span></code></pre></div></div>
|
||
|
||
<p><strong>Example(s):</strong></p>
|
||
|
||
<div class="language-java highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="kd">public</span> <span class="kd">class</span> <span class="nc">Foo</span> <span class="o">{</span>
|
||
<span class="kd">public</span> <span class="kt">void</span> <span class="nf">bar</span><span class="o">(</span><span class="n">Integer</span> <span class="n">x</span><span class="o">)</span> <span class="o">{</span>
|
||
<span class="k">if</span> <span class="o">(</span><span class="n">x</span> <span class="o">==</span> <span class="mi">0</span><span class="o">)</span> <span class="o">{</span>
|
||
<span class="c1">// empty!</span>
|
||
<span class="o">}</span>
|
||
<span class="o">}</span>
|
||
<span class="o">}</span>
|
||
</code></pre></div></div>
|
||
|
||
<p><strong>This rule has the following properties:</strong></p>
|
||
|
||
<table>
|
||
<thead>
|
||
<tr>
|
||
<th>Name</th>
|
||
<th>Default Value</th>
|
||
<th>Description</th>
|
||
<th>Multivalued</th>
|
||
</tr>
|
||
</thead>
|
||
<tbody>
|
||
<tr>
|
||
<td>cc_categories</td>
|
||
<td>Style</td>
|
||
<td>Code Climate Categories</td>
|
||
<td>yes. Delimiter is ‘|’.</td>
|
||
</tr>
|
||
<tr>
|
||
<td>cc_remediation_points_multiplier</td>
|
||
<td>1</td>
|
||
<td>Code Climate Remediation Points multiplier</td>
|
||
<td>no</td>
|
||
</tr>
|
||
<tr>
|
||
<td>cc_block_highlighting</td>
|
||
<td>false</td>
|
||
<td>Code Climate Block Highlighting</td>
|
||
<td>no</td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
|
||
<p><strong>Use this rule by referencing it:</strong></p>
|
||
<div class="language-xml highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="nt"><rule</span> <span class="na">ref=</span><span class="s">"category/apex/errorprone.xml/EmptyIfStmt"</span> <span class="nt">/></span>
|
||
</code></pre></div></div>
|
||
|
||
<h2 id="emptystatementblock">EmptyStatementBlock</h2>
|
||
|
||
<p><strong>Since:</strong> PMD 6.0.0</p>
|
||
|
||
<p><strong>Priority:</strong> Medium (3)</p>
|
||
|
||
<p>Empty block statements serve no purpose and should be removed.</p>
|
||
|
||
<p><strong>This rule is defined by the following XPath expression:</strong></p>
|
||
<div class="language-xpath highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="o">//</span><span class="nt">Method</span><span class="o">/</span><span class="nt">ModifierNode</span><span class="p">[</span><span class="na">@Abstract</span><span class="p">!</span><span class="err">=</span><span class="s1">'true'</span><span class="w"> </span><span class="ow">and</span><span class="w"> </span><span class="p">..</span><span class="o">/</span><span class="nt">BlockStatement</span><span class="p">[</span><span class="nf">count</span><span class="p">(</span><span class="err">*</span><span class="p">)</span><span class="w"> </span><span class="err">=</span><span class="w"> </span><span class="m">0</span><span class="p">]]</span><span class="w">
|
||
</span><span class="p">|</span><span class="w"> </span><span class="o">//</span><span class="nt">Method</span><span class="o">/</span><span class="nt">BlockStatement</span><span class="o">//</span><span class="nt">BlockStatement</span><span class="p">[</span><span class="nf">count</span><span class="p">(</span><span class="err">*</span><span class="p">)</span><span class="w"> </span><span class="err">=</span><span class="w"> </span><span class="m">0</span><span class="w"> </span><span class="ow">and</span><span class="w"> </span><span class="na">@Location</span><span class="w"> </span><span class="p">!</span><span class="err">=</span><span class="w"> </span><span class="kn">parent::</span><span class="err">*/</span><span class="na">@Location</span><span class="p">]</span><span class="w">
|
||
</span></code></pre></div></div>
|
||
|
||
<p><strong>Example(s):</strong></p>
|
||
|
||
<div class="language-java highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="kd">public</span> <span class="kd">class</span> <span class="nc">Foo</span> <span class="o">{</span>
|
||
|
||
<span class="kd">private</span> <span class="kt">int</span> <span class="n">_bar</span><span class="o">;</span>
|
||
|
||
<span class="kd">public</span> <span class="kt">void</span> <span class="nf">setBar</span><span class="o">(</span><span class="kt">int</span> <span class="n">bar</span><span class="o">)</span> <span class="o">{</span>
|
||
<span class="c1">// empty</span>
|
||
<span class="o">}</span>
|
||
|
||
<span class="o">}</span>
|
||
</code></pre></div></div>
|
||
|
||
<p><strong>This rule has the following properties:</strong></p>
|
||
|
||
<table>
|
||
<thead>
|
||
<tr>
|
||
<th>Name</th>
|
||
<th>Default Value</th>
|
||
<th>Description</th>
|
||
<th>Multivalued</th>
|
||
</tr>
|
||
</thead>
|
||
<tbody>
|
||
<tr>
|
||
<td>cc_categories</td>
|
||
<td>Style</td>
|
||
<td>Code Climate Categories</td>
|
||
<td>yes. Delimiter is ‘|’.</td>
|
||
</tr>
|
||
<tr>
|
||
<td>cc_remediation_points_multiplier</td>
|
||
<td>1</td>
|
||
<td>Code Climate Remediation Points multiplier</td>
|
||
<td>no</td>
|
||
</tr>
|
||
<tr>
|
||
<td>cc_block_highlighting</td>
|
||
<td>false</td>
|
||
<td>Code Climate Block Highlighting</td>
|
||
<td>no</td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
|
||
<p><strong>Use this rule by referencing it:</strong></p>
|
||
<div class="language-xml highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="nt"><rule</span> <span class="na">ref=</span><span class="s">"category/apex/errorprone.xml/EmptyStatementBlock"</span> <span class="nt">/></span>
|
||
</code></pre></div></div>
|
||
|
||
<h2 id="emptytryorfinallyblock">EmptyTryOrFinallyBlock</h2>
|
||
|
||
<p><strong>Since:</strong> PMD 6.0.0</p>
|
||
|
||
<p><strong>Priority:</strong> Medium (3)</p>
|
||
|
||
<p>Avoid empty try or finally blocks - what’s the point?</p>
|
||
|
||
<p><strong>This rule is defined by the following XPath expression:</strong></p>
|
||
<div class="language-xpath highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="o">//</span><span class="nt">TryCatchFinallyBlockStatement</span><span class="p">[.</span><span class="o">/</span><span class="nt">BlockStatement</span><span class="p">[</span><span class="nf">count</span><span class="p">(</span><span class="err">*</span><span class="p">)</span><span class="w"> </span><span class="err">=</span><span class="w"> </span><span class="m">0</span><span class="p">]]</span><span class="w">
|
||
</span></code></pre></div></div>
|
||
|
||
<p><strong>Example(s):</strong></p>
|
||
|
||
<div class="language-java highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="kd">public</span> <span class="kd">class</span> <span class="nc">Foo</span> <span class="o">{</span>
|
||
<span class="kd">public</span> <span class="kt">void</span> <span class="nf">bar</span><span class="o">()</span> <span class="o">{</span>
|
||
<span class="k">try</span> <span class="o">{</span>
|
||
<span class="c1">// empty !</span>
|
||
<span class="o">}</span> <span class="k">catch</span> <span class="o">(</span><span class="n">Exception</span> <span class="n">e</span><span class="o">)</span> <span class="o">{</span>
|
||
<span class="n">e</span><span class="o">.</span><span class="na">printStackTrace</span><span class="o">();</span>
|
||
<span class="o">}</span>
|
||
<span class="o">}</span>
|
||
<span class="o">}</span>
|
||
|
||
<span class="kd">public</span> <span class="kd">class</span> <span class="nc">Foo</span> <span class="o">{</span>
|
||
<span class="kd">public</span> <span class="kt">void</span> <span class="nf">bar</span><span class="o">()</span> <span class="o">{</span>
|
||
<span class="k">try</span> <span class="o">{</span>
|
||
<span class="kt">int</span> <span class="n">x</span><span class="o">=</span><span class="mi">2</span><span class="o">;</span>
|
||
<span class="o">}</span> <span class="k">finally</span> <span class="o">{</span>
|
||
<span class="c1">// empty!</span>
|
||
<span class="o">}</span>
|
||
<span class="o">}</span>
|
||
<span class="o">}</span>
|
||
</code></pre></div></div>
|
||
|
||
<p><strong>This rule has the following properties:</strong></p>
|
||
|
||
<table>
|
||
<thead>
|
||
<tr>
|
||
<th>Name</th>
|
||
<th>Default Value</th>
|
||
<th>Description</th>
|
||
<th>Multivalued</th>
|
||
</tr>
|
||
</thead>
|
||
<tbody>
|
||
<tr>
|
||
<td>cc_categories</td>
|
||
<td>Style</td>
|
||
<td>Code Climate Categories</td>
|
||
<td>yes. Delimiter is ‘|’.</td>
|
||
</tr>
|
||
<tr>
|
||
<td>cc_remediation_points_multiplier</td>
|
||
<td>1</td>
|
||
<td>Code Climate Remediation Points multiplier</td>
|
||
<td>no</td>
|
||
</tr>
|
||
<tr>
|
||
<td>cc_block_highlighting</td>
|
||
<td>false</td>
|
||
<td>Code Climate Block Highlighting</td>
|
||
<td>no</td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
|
||
<p><strong>Use this rule by referencing it:</strong></p>
|
||
<div class="language-xml highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="nt"><rule</span> <span class="na">ref=</span><span class="s">"category/apex/errorprone.xml/EmptyTryOrFinallyBlock"</span> <span class="nt">/></span>
|
||
</code></pre></div></div>
|
||
|
||
<h2 id="emptywhilestmt">EmptyWhileStmt</h2>
|
||
|
||
<p><strong>Since:</strong> PMD 6.0.0</p>
|
||
|
||
<p><strong>Priority:</strong> Medium (3)</p>
|
||
|
||
<p>Empty While Statement finds all instances where a while statement does nothing.<br />
|
||
If it is a timing loop, then you should use Thread.sleep() for it; if it is
|
||
a while loop that does a lot in the exit expression, rewrite it to make it clearer.</p>
|
||
|
||
<p><strong>This rule is defined by the following XPath expression:</strong></p>
|
||
<div class="language-xpath highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="o">//</span><span class="nt">WhileLoopStatement</span><span class="p">[.</span><span class="o">/</span><span class="nt">BlockStatement</span><span class="p">[</span><span class="nf">count</span><span class="p">(</span><span class="err">*</span><span class="p">)</span><span class="w"> </span><span class="err">=</span><span class="w"> </span><span class="m">0</span><span class="p">]]</span><span class="w">
|
||
</span></code></pre></div></div>
|
||
|
||
<p><strong>Example(s):</strong></p>
|
||
|
||
<div class="language-java highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="kd">public</span> <span class="kt">void</span> <span class="nf">bar</span><span class="o">(</span><span class="n">Integer</span> <span class="n">a</span><span class="o">,</span> <span class="n">Integer</span> <span class="n">b</span><span class="o">)</span> <span class="o">{</span>
|
||
<span class="k">while</span> <span class="o">(</span><span class="n">a</span> <span class="o">==</span> <span class="n">b</span><span class="o">)</span> <span class="o">{</span>
|
||
<span class="c1">// empty!</span>
|
||
<span class="o">}</span>
|
||
<span class="o">}</span>
|
||
</code></pre></div></div>
|
||
|
||
<p><strong>This rule has the following properties:</strong></p>
|
||
|
||
<table>
|
||
<thead>
|
||
<tr>
|
||
<th>Name</th>
|
||
<th>Default Value</th>
|
||
<th>Description</th>
|
||
<th>Multivalued</th>
|
||
</tr>
|
||
</thead>
|
||
<tbody>
|
||
<tr>
|
||
<td>cc_categories</td>
|
||
<td>Style</td>
|
||
<td>Code Climate Categories</td>
|
||
<td>yes. Delimiter is ‘|’.</td>
|
||
</tr>
|
||
<tr>
|
||
<td>cc_remediation_points_multiplier</td>
|
||
<td>1</td>
|
||
<td>Code Climate Remediation Points multiplier</td>
|
||
<td>no</td>
|
||
</tr>
|
||
<tr>
|
||
<td>cc_block_highlighting</td>
|
||
<td>false</td>
|
||
<td>Code Climate Block Highlighting</td>
|
||
<td>no</td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
|
||
<p><strong>Use this rule by referencing it:</strong></p>
|
||
<div class="language-xml highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="nt"><rule</span> <span class="na">ref=</span><span class="s">"category/apex/errorprone.xml/EmptyWhileStmt"</span> <span class="nt">/></span>
|
||
</code></pre></div></div>
|
||
|
||
<h2 id="methodwithsamenameasenclosingclass">MethodWithSameNameAsEnclosingClass</h2>
|
||
|
||
<p><strong>Since:</strong> PMD 5.5.0</p>
|
||
|
||
<p><strong>Priority:</strong> Medium (3)</p>
|
||
|
||
<p>Non-constructor methods should not have the same name as the enclosing class.</p>
|
||
|
||
<p><strong>This rule is defined by the following Java class:</strong> <a href="https://github.com/pmd/pmd/blob/master/pmd-apex/src/main/java/net/sourceforge/pmd/lang/apex/rule/errorprone/MethodWithSameNameAsEnclosingClassRule.java">net.sourceforge.pmd.lang.apex.rule.errorprone.MethodWithSameNameAsEnclosingClassRule</a></p>
|
||
|
||
<p><strong>Example(s):</strong></p>
|
||
|
||
<div class="language-java highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="kd">public</span> <span class="kd">class</span> <span class="nc">MyClass</span> <span class="o">{</span>
|
||
<span class="c1">// this is OK because it is a constructor</span>
|
||
<span class="kd">public</span> <span class="nf">MyClass</span><span class="o">()</span> <span class="o">{}</span>
|
||
<span class="c1">// this is bad because it is a method</span>
|
||
<span class="kd">public</span> <span class="kt">void</span> <span class="nf">MyClass</span><span class="o">()</span> <span class="o">{}</span>
|
||
<span class="o">}</span>
|
||
</code></pre></div></div>
|
||
|
||
<p><strong>This rule has the following properties:</strong></p>
|
||
|
||
<table>
|
||
<thead>
|
||
<tr>
|
||
<th>Name</th>
|
||
<th>Default Value</th>
|
||
<th>Description</th>
|
||
<th>Multivalued</th>
|
||
</tr>
|
||
</thead>
|
||
<tbody>
|
||
<tr>
|
||
<td>cc_categories</td>
|
||
<td>Style</td>
|
||
<td>Code Climate Categories</td>
|
||
<td>yes. Delimiter is ‘|’.</td>
|
||
</tr>
|
||
<tr>
|
||
<td>cc_remediation_points_multiplier</td>
|
||
<td>1</td>
|
||
<td>Code Climate Remediation Points multiplier</td>
|
||
<td>no</td>
|
||
</tr>
|
||
<tr>
|
||
<td>cc_block_highlighting</td>
|
||
<td>false</td>
|
||
<td>Code Climate Block Highlighting</td>
|
||
<td>no</td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
|
||
<p><strong>Use this rule by referencing it:</strong></p>
|
||
<div class="language-xml highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="nt"><rule</span> <span class="na">ref=</span><span class="s">"category/apex/errorprone.xml/MethodWithSameNameAsEnclosingClass"</span> <span class="nt">/></span>
|
||
</code></pre></div></div>
|
||
|
||
|
||
|
||
<div class="tags">
|
||
|
||
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|
||
|
||
|
||
|
||
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|
||
|
||
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||
|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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