pmd.xml

<?xml version="1.0"?>

<ruleset name="Custom 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>
        kafkaproxy PMD ruleset
    </description>

    <rule ref="category/java/errorprone.xml">
        <!-- Extremely noisy with false prositives -->
        <!-- https://github.com/pmd/pmd/issues/1668 -->
        <exclude name="BeanMembersShouldSerialize"/>

        <!-- Not working properly with Collection.forEach() -->
        <!-- https://stackoverflow.com/questions/21592497/java-for-each-loop-being-flagged-as-ur-anomaly-by-pmd -->
        <exclude name="DataflowAnomalyAnalysis"/>

        <!-- Non-static initializers are a very useful Java feature and there's no point in denying their usage. -->
        <exclude name="NonStaticInitializer"/>
        <!-- Same for assignments in operands. -->
        <exclude name="AssignmentInOperand"/>

        <!-- Not a JEE application -->
        <exclude name="UseProperClassLoader" />

        <!-- Not super useful -->
        <exclude name="ReturnEmptyArrayRatherThanNull" />
        <exclude name="ReturnEmptyCollectionRatherThanNull" />
    </rule>
</ruleset>