* endpoint) or <i>closed</i> (includes the endpoint) on that side. With three possibilities on each
 * side, this yields nine basic types of ranges, enumerated below. (Notation: a square bracket
 * ({@code [ ]}) indicates that the range is closed on that side; a parenthesis ({@code ( )}) means
 * it is either open or unbounded. The construct {@code {x | statement}} is read "the set of all
 * <i>x</i> such that <i>statement</i>.")
 *

   * multiset that violates this constraint, the {@code add(Object)} call will throw a {@code
   * ClassCastException}.
   *
   * @param comparator the comparator that will be used to sort this multiset. A null value
   *     indicates that the elements' <i>natural ordering</i> should be used.
   */
  @SuppressWarnings("unchecked")
  public static <E extends @Nullable Object> TreeMultiset<E> create(
      @CheckForNull Comparator<? super E> comparator) {

   * multiset that violates this constraint, the {@code add(Object)} call will throw a {@code
   * ClassCastException}.
   *
   * @param comparator the comparator that will be used to sort this multiset. A null value
   *     indicates that the elements' <i>natural ordering</i> should be used.
   */
  @SuppressWarnings("unchecked")
  public static <E extends @Nullable Object> TreeMultiset<E> create(
      @CheckForNull Comparator<? super E> comparator) {

  // numbers.
  // If present, only traffic on the specified protocol AND port will be matched.
  // +optional
  optional k8s.io.apimachinery.pkg.util.intstr.IntOrString port = 2;

  // endPort indicates that the range of ports from port to endPort if set, inclusive,
  // should be allowed by the policy. This field cannot be defined if the port field
  // is not defined or if the port field is defined as a named (string) port.

  // The generation observed by the controller.
  // +optional
  optional int64 observedGeneration = 1;

  // The results of type checking for each expression.
  // Presence of this field indicates the completion of the type checking.
  // +optional
  optional TypeChecking typeChecking = 2;

  // The conditions represent the latest available observations of a policy's current state.
  // +optional

  @SuppressWarnings("unchecked") // we must carefully only allow Es to get in
  E elementData(int index) {
    /*
     * requireNonNull is safe as long as we're careful to call this method only with populated
     * indexes.
     */
    return (E) requireNonNull(queue[index]);
  }

  @Override
  @CheckForNull
  public E peek() {
    return isEmpty() ? null : elementData(0);
  }

   * Same as {@link #DIAMOND_GRAPH}, but with an extra c->a edge and some self edges:
   *
   * <pre>{@code
   *   a<>
   *  / \\
   * b   c
   *  \ /
   *   d<>
   * }</pre>
   *
   * {@code <>} indicates a self-loop
   */
  private static final SuccessorsFunction<Character> MULTI_GRAPH =
      createDirectedGraph("aa", "dd", "ab", "ac", "ca", "cd", "bd");

  /** A directed graph with a single cycle: a -> b -> c -> d -> a. */

   * Same as {@link #DIAMOND_GRAPH}, but with an extra c->a edge and some self edges:
   *
   * <pre>{@code
   *   a<>
   *  / \\
   * b   c
   *  \ /
   *   d<>
   * }</pre>
   *
   * {@code <>} indicates a self-loop
   */
  private static final SuccessorsFunction<Character> MULTI_GRAPH =
      createDirectedGraph("aa", "dd", "ab", "ac", "ca", "cd", "bd");

  /** A directed graph with a single cycle: a -> b -> c -> d -> a. */

   *
   * @param valuesInOrder the values that the returned comparator will be able to compare, in the
   *     order the comparator should induce
   * @return the comparator described above
   * @throws NullPointerException if any of the provided values is null
   * @throws IllegalArgumentException if {@code valuesInOrder} contains any duplicate values

          <type>String</type>
        </field>
        <field xml.attribute="true" xml.tagName="root">
          <name>root</name>
          <version>4.1.0+</version>
          <description>
            Indicates that this project is the root project, located in the upper directory of the source tree.
            This is the directory which may contain the .mvn directory.

            @since Maven 4.0.0
          </description>