<type>String</type>
          <description>The name of the file that must exist to activate the profile.</description>
        </field>
      </fields>
    </class>
    <!--
    This can be put back in when we figure out how to have multiple model versions
    <class>
      <name>ActivationCustom</name>
      <version>4.1.0+</version>

            The important difference is this will not resolve the files for the dependencies, i.e. the artifacts
            associated with a Maven project can lack a file. As such, this annotation is meant for Mojos that only
            want to analyze the set of transitive dependencies, in particular during early lifecycle phases where