ruleset.xml

<?xml version="1.0"?>
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<ruleset xmlns="http://pmd.sourceforge.net/ruleset/2.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" name="Qulice Ruleset" xsi:schemaLocation="http://pmd.sourceforge.net/ruleset/2.0.0 http://pmd.sourceforge.net/ruleset_2_0_0.xsd">
  <description>
    This ruleset checks code for potential mess
  </description>
  <rule ref="category/java/bestpractices.xml">
    <exclude name="JUnitTestsShouldIncludeAssert"/>
    <exclude name="GuardLogStatement"/>
    <exclude name="PositionLiteralsFirstInComparisons"/>
    <exclude name="PositionLiteralsFirstInCaseInsensitiveComparisons"/>
  </rule>
  <rule ref="category/java/codestyle.xml">
    <exclude name="AtLeastOneConstructor"/>
    <exclude name="AvoidFinalLocalVariable"/>
    <exclude name="ShortClassName"/>
    <exclude name="ShortVariable"/>
    <exclude name="AbstractNaming"/>
    <exclude name="ClassNamingConventions"/>
    <exclude name="CommentDefaultAccessModifier"/>
    <exclude name="DefaultPackage"/>
    <exclude name="LinguisticNaming"/>
    <exclude name="CallSuperInConstructor"/>
  </rule>
  <rule ref="category/java/design.xml">
    <exclude name="LoosePackageCoupling"/>
    <exclude name="LawOfDemeter"/>
    <exclude name="SignatureDeclareThrowsException"/>
    <exclude name="ExcessiveImports"/>
    <exclude name="CyclomaticComplexity"/>
  </rule>
  <rule ref="category/java/documentation.xml">
    <exclude name="CommentRequired"/>
    <exclude name="CommentSize"/>
  </rule>
  <rule ref="category/java/errorprone.xml">
    <exclude name="DataflowAnomalyAnalysis"/>
    <exclude name="AvoidLiteralsInIfCondition"/>
    <exclude name="NonSerializableClass"/>
    <exclude name="MissingSerialVersionUID"/>
  </rule>
  <rule ref="category/java/performance.xml">
    <exclude name="AvoidInstantiatingObjectsInLoops"/>
  </rule>
  <rule ref="category/java/multithreading.xml">
    <exclude name="AvoidUsingVolatile"/>
    <exclude name="UseConcurrentHashMap"/>
    <exclude name="DoNotUseThreads"/>
  </rule>
  <rule ref="category/java/errorprone.xml/AvoidDuplicateLiterals">
    <properties>
      <property name="maxDuplicateLiterals">
        <value>5</value>
      </property>
      <property name="skipAnnotations">
        <value>true</value>
      </property>
    </properties>
  </rule>
  <rule name="ProhibitPlainJunitAssertionsRule" message="Avoid using Plain JUnit assertions" class="com.qulice.pmd.rules.ProhibitPlainJunitAssertionsRule">
    <description>
      Instead of using plain JUnit assertions like org.junit.Assert.assert*
      junit.framework.Assert.assert* - use Matchers from package org.hamcrest
    </description>
  </rule>
  <rule name="UseStringIsEmptyRule" message="Use String.isEmpty() when checking for empty string" class="com.qulice.pmd.rules.UseStringIsEmptyRule">
    <description>
      Method String.isEmpty() should be used when testing for empty string, rather than using
      String.length() compared to 0
    </description>
  </rule>
  <rule name="UnnecessaryLocalRule" message="Avoid creating unnecessary local variables like ''{0}''" class="com.qulice.pmd.rules.UnnecessaryLocalRule">
    </rule>
  <rule name="ConstructorShouldDoInitialization" message="Avoid doing field initialization outside constructor." language="java" class="net.sourceforge.pmd.lang.rule.XPathRule">
    <description>
      Avoid doing field initialization outside class constructor.
      Such initialization is allowed only when there is no constructor.
    </description>
    <priority>3</priority>
    <properties>
      <property name="xpath">
        <value><![CDATA[
          //ClassOrInterfaceBody
          [count(ClassOrInterfaceBodyDeclaration/ConstructorDeclaration)>0]
          [count(ClassOrInterfaceBodyDeclaration/FieldDeclaration[@Static='false']/VariableDeclarator/VariableInitializer)>0]
        ]]></value>
      </property>
    </properties>
  </rule>
  <rule name="OnlyOneConstructorShouldDoInitialization" message="Avoid field initialization in several constructors." language="java" class="net.sourceforge.pmd.lang.rule.XPathRule">
    <description>
      Avoid doing field initialization in several constructors.
      Only one main constructor should do real work.
      Other constructors should delegate initialization to it.
    </description>
    <priority>3</priority>
    <properties>
      <property name="xpath">
        <value><![CDATA[
          //ClassOrInterfaceBody[count(ClassOrInterfaceBodyDeclaration/ConstructorDeclaration)>1]
          [count(ClassOrInterfaceBodyDeclaration/ConstructorDeclaration[BlockStatement])>1]
        ]]></value>
      </property>
    </properties>
  </rule>
  <rule name="ConstructorOnlyInitializesOrCallOtherConstructors" message="Only field initialization or call to other constructors in a constructor." language="java" class="net.sourceforge.pmd.lang.rule.XPathRule">
    <description>
      Avoid putting anything other than field assignments into constructors.
      The only exception should be calling other constructors
      or calling super class constructor.
    </description>
    <priority>3</priority>
    <properties>
      <property name="xpath">
        <value><![CDATA[
          //ConstructorDeclaration/BlockStatement[count(Statement/StatementExpression/PrimaryExpression[count(following-sibling::AssignmentOperator[1])>0]/PrimaryPrefix[@ThisModifier="true"])!=count(*)]
        ]]></value>
      </property>
    </properties>
  </rule>
  <rule name="AvoidDirectAccessToStaticFields" message="Static fields should be accessed in a static way [CLASS_NAME.FIELD_NAME]." language="java" class="net.sourceforge.pmd.lang.rule.XPathRule">
    <description>
      Avoid accessing static fields directly.
    </description>
    <priority>3</priority>
    <properties>
      <property name="xpath">
        <value><![CDATA[
          //Name[@Image = //FieldDeclaration[@Static='true']/@VariableName]
        ]]></value>
      </property>
    </properties>
    <example>
  <![CDATA[
  public final class DirectAccessToStaticFields {
    private static int num = 1;

    public static int number() {
        return num;
    }
  }
  ]]>
    </example>
  </rule>
  <rule name="AvoidAccessToStaticMembersViaThis" message="Static members should be accessed in a static way [CLASS_NAME.FIELD_NAME], not via instance reference." language="java" class="net.sourceforge.pmd.lang.rule.XPathRule">
    <description>
      Avoid accessing static fields or methods via instance with 'this' keyword.
    </description>
    <priority>3</priority>
    <properties>
      <property name="xpath">
        <value><![CDATA[
          //PrimaryExpression[
            (./PrimaryPrefix[@ThisModifier='true']) and
            (./PrimarySuffix[
              @Image=//FieldDeclaration[@Static='true']/@VariableName
              or @Image=//MethodDeclaration[@Static='true']/@MethodName
            ])
          ]
        ]]></value>
      </property>
    </properties>
  </rule>
  <rule name="ProhibitPublicStaticMethods" message="Public static methods are prohibited." language="java" class="net.sourceforge.pmd.lang.rule.XPathRule">
    <description>
      Public static methods are prohibited.
    </description>
    <priority>3</priority>
    <properties>
      <property name="xpath">
        <value><![CDATA[
          //ClassOrInterfaceBodyDeclaration[
            MethodDeclaration[@Static='true' and @Public='true'
              and not (
               MethodDeclarator[
                count(FormalParameters/FormalParameter)=1
                and FormalParameters/FormalParameter[1]/Type/ReferenceType/ClassOrInterfaceType[@Image='String']
                and FormalParameters/FormalParameter[@Varargs='true']
               ] and not(ResultType/Type) and @Name='main'
              )
            ] and (
                Annotation/MarkerAnnotation/Name[@Image!='BeforeClass' and @Image!='AfterClass'
                  and @Image!='Parameterized.Parameters']
                or not (Annotation)
            )
          ]
      ]]></value>
      </property>
    </properties>
  </rule>
  <rule name="ProhibitFilesCreateFileInTests" message="Files.createFile should not be used in tests, replace them with @Rule TemporaryFolder" language="java" class="net.sourceforge.pmd.lang.rule.XPathRule">
    <description>
      Files.createFile shouldn't be used in tests.
    </description>
    <priority>3</priority>
    <properties>
      <property name="xpath">
        <value><![CDATA[
          //ClassOrInterfaceDeclaration[ends-with(@SimpleName, 'Test')]//PrimaryPrefix/Name[@Image='Files.createFile']
        ]]></value>
      </property>
    </properties>
  </rule>
  <rule name="JUnitTestClassShouldBeFinal" language="java" class="net.sourceforge.pmd.lang.rule.XPathRule" message="JUnit test class should be final">
    <description><![CDATA[
      Reports on JUnit test classes declared non-final.
    ]]></description>
    <priority>3</priority>
    <properties>
      <property name="version" value="2.0"/>
      <!--Solve priority confict-->
      <property name="xpath">
        <value><![CDATA[
        //TypeDeclaration
          //ClassOrInterfaceDeclaration[
          (: a Junit 3,4 and 5 test class :)
            @Interface=false() and
            ClassOrInterfaceBody/ClassOrInterfaceBodyDeclaration
              [Annotation//Name[
                pmd-java:typeIs('junit.framework.TestCase')
                or pmd-java:typeIs('org.junit.Test')
                or pmd-java:typeIs('org.junit.jupiter.api.Test')
              ]]
          ]
          [@Final = false()]
        ]]></value>
      </property>
    </properties>
  </rule>
</ruleset>