tools/checkstyle/src/main/resources/cloud-pmd.xml

<?xml version="1.0" encoding="UTF-8"?>
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<ruleset name="Maven Ruleset"
  xmlns="http://pmd.sf.net/ruleset/1.0.0"
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://pmd.sf.net/ruleset/1.0.0 http://pmd.sf.net/ruleset_xml_schema.xsd"
  xsi:noNamespaceSchemaLocation="http://pmd.sf.net/ruleset_xml_schema.xsd">

  <description>
    Ruleset that brings all the rulesets we want from the pmd jar, because
    the maven-pmd-plugin doesn't find them otherwise. This is also the place
    to add our own future rulesets, if any.
  </description>

  <rule ref="rulesets/java/basic.xml"/>
  <rule ref="rulesets/java/braces.xml"/>
  <rule ref="rulesets/java/clone.xml"/>
  <rule ref="rulesets/java/codesize.xml"/>
  <rule ref="rulesets/java/comments.xml">
    <!-- We shouldn't limit the number of lines in the header of a class -->
    <exclude name="CommentSize"/>
    <exclude name="CommentRequired" />
  </rule>
  <rule ref="rulesets/java/controversial.xml">
    <!-- The rule is good, but is not properly applied. It forces you to statically declare it as ConcurrentHashMap -->
    <exclude name="UseConcurrentHashMap"/>
    <exclude name="CallSuperInConstructor"/>
    <exclude name="AtLeastOneConstructor"/>
    <exclude name="AssignmentInOperand"/>
    <exclude name="NullAssignment"/>
    <exclude name="DataflowAnomalyAnalysis" />
    <exclude name="UseObjectForClearerAPI" />
  </rule>
  <rule ref="rulesets/java/coupling.xml">
    <exclude name="ExcessiveImports" />
    <exclude name="LawOfDemeter"/>
  </rule>
  <rule ref="rulesets/java/design.xml">
    <exclude name="ConstructorCallsOverridableMethod"/>
    <exclude name="AbstractClassWithoutAbstractMethod"/>
    <exclude name="AvoidSynchronizedAtMethodLevel"/>
  </rule>
  <rule ref="rulesets/java/empty.xml"/>
  <rule ref="rulesets/java/finalizers.xml"/>
  <rule ref="rulesets/java/imports.xml"/>
  <rule ref="rulesets/java/j2ee.xml"/>
  <rule ref="rulesets/java/junit.xml"/>
  <rule ref="rulesets/java/logging-java.xml"/>
  <rule ref="rulesets/java/naming.xml">
    <exclude name="ShortVariable"/>
    <exclude name="AbstractNaming"/>
  </rule>
  <rule ref="rulesets/java/naming.xml/LongVariable">
    <properties>
      <property name="minimum" value="32"/>
    </properties>
  </rule>
  <rule ref="rulesets/java/optimizations.xml"/>
  <rule ref="rulesets/java/strictexception.xml"/>
  <rule ref="rulesets/java/strings.xml"/>
  <rule ref="rulesets/java/sunsecure.xml"/>
  <rule ref="rulesets/java/typeresolution.xml"/>
  <rule ref="rulesets/java/unnecessary.xml"/>
  <rule ref="rulesets/java/unusedcode.xml"/>
</ruleset>