<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>

            <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>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>

          <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>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>

          <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>

 * {@link Network}. (You can use a positive {@code Integer} edge value as a loose representation of
 * edge multiplicity, but the {@code *degree()} and mutation methods will not reflect your
 * interpretation of the edge value as its multiplicity.)
 *
 * <h3>Building a {@code ValueGraph}</h3>
 *
 * <p>The implementation classes that {@code common.graph} provides are not public, by design. To

    private int nextCursor = -1;
    private int expectedModCount = modCount;
    // The same element is not allowed in both forgetMeNot and skipMe, but duplicates are allowed in
    // either of them, up to the same multiplicity as the queue.
    @CheckForNull private Queue<E> forgetMeNot;
    @CheckForNull private List<E> skipMe;
    @CheckForNull private E lastFromForgetMeNot;
    private boolean canRemove;

    @Override

    private int nextCursor = -1;
    private int expectedModCount = modCount;
    // The same element is not allowed in both forgetMeNot and skipMe, but duplicates are allowed in
    // either of them, up to the same multiplicity as the queue.
    @CheckForNull private Queue<E> forgetMeNot;
    @CheckForNull private List<E> skipMe;
    @CheckForNull private E lastFromForgetMeNot;
    private boolean canRemove;

    @Override