</field>
        <field>
          <name>outputDirectory</name>
          <version>4.0.0+</version>
          <type>String</type>
          <description>
            Where to store all the generated reports. The default is
            {@code ${project.build.directory}/site}.
          </description>
          <!-- TODO: why isn't default set here? -->
        </field>
        <field>