pmd.xml

<?xml version="1.0" encoding="utf-8"?>
<ruleset name="Inrupt PMD Rules"
         xmlns="http://pmd.sourceforge.net/ruleset/2.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://pmd.sourceforge.net/ruleset/2.0.0 https://pmd.sourceforge.io/ruleset_2_0_0.xsd">

    <description>
        Inrupt PMD rules adapted for the Conformance Test Harness
    </description>

    <rule ref="category/java/security.xml"/>
    <rule ref="category/java/multithreading.xml">
        <exclude name="UseConcurrentHashMap"/>
        <exclude name="DoNotUseThreads"/>
    </rule>
    <rule ref="category/java/performance.xml"/>
    <rule ref="category/java/bestpractices.xml">
        <exclude name="GuardLogStatement"/> <!-- Clutters with virtually no performance benefit in the test harness -->
    </rule>
    <rule ref="category/java/errorprone.xml">
        <!-- This rule is unhelpful since CTH is all about testing -->
        <exclude name="TestClassWithoutTestCases"/>
    </rule>

    <!-- 1 (the default) assert per unit test seems extremely restrictive. Just raising to 5. -->
    <rule ref="category/java/bestpractices.xml/JUnitTestContainsTooManyAsserts">
        <properties>
            <property name="maximumAsserts" value="5" />
        </properties>
    </rule>
</ruleset>