test-apex.xml

<project name="codeScanProject_apex" default="pmd" basedir=".">
    <description>PMD code scan for Salesforce Apex
    </description>

    <property file="pmd.properties"/>

    <path id="lib.path.ref">
        <fileset dir="./lib" includes="*.jar"/>
    </path>

    <target name="pmd">
        <taskdef name="pmd" classpathref="lib.path.ref" classname="net.sourceforge.pmd.ant.PMDTask"/>
        <pmd shortFilenames="true">
            <ruleset>${rulesets.apex}</ruleset>
            <formatter type="html" toFile="${out.file.apex}">
                <param name="linkPrefix" value="http://pmd.sourceforge.net/xref/"/>
            </formatter>

            <formatter type="csv" toFile="${out.file.csv.apex}">
                <param name="linkPrefix" value="http://pmd.sourceforge.net/xref/"/>
            </formatter>

            <fileset dir="${src.folder.apex}">
                <include name="*.cls"/>
            </fileset>
        </pmd>
    </target>
</project>