<description>Parameter expression, to let user override default value with a user property, system property or project property.</description>
        </field>
        <field>
          <name>defaultValue</name>
          <version>2.0.0+</version>
          <type>String</type>
          <description>The default value, as an expression that will be evaluated at injection or run-time.</description>
        </field>

                <property name="test.projects.name" value="basic" />
                <property name="test.projects.version" value="1.0" />
                <property name="test.projects.archetype" value="${test.projects.name}-${test.projects.version}" />
                <property name="test.projects.source.directory" value="${test.projects.archetype}" />

     |       anything, you could just leave off the <value/> inside the activation-property.
     |
    <profile>
      <id>env-dev</id>

      <activation>
        <property>
          <name>target-env</name>
          <value>dev</value>
        </property>
      </activation>

      <properties>

    This is the model specification for <code>${basedir}/profiles.xml</code>.
  ]]></description>
  <defaults>
    <default>
      <key>package</key>
      <value>org.apache.maven.profiles</value>
    </default>
  </defaults>
  <classes>
    <class rootElement="true" xml.tagName="profilesXml">
      <name>ProfilesRoot</name>
      <version>1.0.0</version>

    <p>The default location for the settings file is {@code ~/.m2/settings.xml}.</p>
    ]]>
  </description>
  <defaults>
    <default>
      <key>package</key>
      <value>org.apache.maven.settings</value>
    </default>
  </defaults>
  <classes>
    <class java.clone="deep">
      <name>TrackableBase</name>
      <version>1.0.0+</version>
      <description>

  </description>
  <defaults>
    <default>
      <key>package</key>
      <value>org.apache.maven.artifact.repository.metadata</value>
    </default>
  </defaults>
  <classes>
    <class rootElement="true" xml.tagName="metadata" java.clone="deep">
      <name>Metadata</name>
      <version>1.0.0+</version>
      <fields>