<fields>
        <field>
          <name>lifecycles</name>
          <version>1.0.0+</version>
          <association xml.itemsStyle="flat">
            <type>Lifecycle</type>
            <multiplicity>*</multiplicity>
          </association>
        </field>
      </fields>
    </class>
    <class>
      <name>Lifecycle</name>
      <version>1.0.0+</version>

            <type>Parameter</type>
            <multiplicity>*</multiplicity>
          </association>
        </field>
        <field xdoc.separator="blank">
          <name>resolutions</name>
          <version>2.0.0+</version>
          <description></description>
          <association>
            <type>Resolution</type>
            <multiplicity>*</multiplicity>
          </association>
        </field>

            <multiplicity>*</multiplicity>
          </association>
        </field>
        <field>
          <name>pluginRepositories</name>
          <version>1.3.0+</version>
          <description>
            The lists of the remote repositories for discovering plugins.
          </description>
          <association>
            <type>Repository</type>
            <multiplicity>*</multiplicity>

            <type>String</type>
            <multiplicity>*</multiplicity>
          </association>
        </field>
        <field>
          <name>repositories</name>
          <version>1.0.0</version>
          <description><![CDATA[The lists of the remote repositories]]>
          </description>
          <association>
            <type>Repository</type>
            <multiplicity>*</multiplicity>
          </association>

          <description>The list of plugin parameter expressions described by this
            document.</description>
          <association>
            <type>Expression</type>
            <multiplicity>*</multiplicity>
          </association>
        </field>
      </fields>
      <codeSegments>
        <codeSegment>
          <version>1.0.0</version>

            <type>License</type>
            <multiplicity>*</multiplicity>
          </association>
        </field>
        <field xdoc.separator="blank">
          <name>developers</name>
          <version>3.0.0+</version>
          <description>Describes the committers of a project.</description>
          <association>
            <type>Developer</type>
            <multiplicity>*</multiplicity>
          </association>

          <version>1.0.0+</version>
          <description>The set of plugins when this directory represents a "groupId".</description>
          <association>
            <type>Plugin</type>
            <multiplicity>*</multiplicity>
          </association>
        </field>
      </fields>
      <codeSegments>
        <codeSegment>
          <version>1.0.0/1.1.0</version>
          <code><![CDATA[

          <version>1.0.0+</version>
          <description>The toolchain instance definition.</description>
          <association xml.itemsStyle="flat">
            <type>ToolchainModel</type>
            <multiplicity>*</multiplicity>
          </association>
        </field>
      </fields>
      <codeSegments>
        <codeSegment>
          <version>1.0.0/1.1.0</version>
          <code>

          <version>1.0.0+</version>
          <association xml.itemsStyle="flat">
            <type>CoreExtension</type>
            <multiplicity>*</multiplicity>
          </association>
        </field>
      </fields>
    </class>
    <class xml.tagName="extension">
      <name>CoreExtension</name>

 * the same single element. The total number of occurrences of an element in a multiset is called
 * the <i>count</i> of that element (the terms "frequency" and "multiplicity" are equivalent, but
 * not used in this API). Since the count of an element is represented as an {@code int}, a multiset
 * may never contain more than {@link Integer#MAX_VALUE} occurrences of any one element.
 *