return queue;
  }

  // LinkedList: see {@link com.google.common.collect.Lists}

  // PriorityBlockingQueue

  /**
   * Creates an empty {@code PriorityBlockingQueue} with the ordering given by its elements' natural
   * ordering.
   *
   * @since 11.0 (but the bound of {@code E} was changed from {@code Object} to {@code Comparable}
   *     in 15.0)
   */

        this.dependencyGraph = dependencyGraph;
        this.projectWeights = new ConcurrentHashMap<>();
        this.comparator = createComparator();
    }

    /**
     * Gets the comparator for ordering projects by critical path priority.
     *
     * @return comparator that orders projects with longer dependency chains first
     */
    public Comparator<MavenProject> getComparator() {
        return comparator;
    }

   *
   * <p>The {@link Table#cellSet()} iteration order of the provided table determines the iteration
   * ordering of all views in the returned table. Note that some views of the original table and the
   * copied table may have different iteration orders. For more control over the ordering, create a
   * {@link Builder} and call {@link Builder#orderRowsBy}, {@link Builder#orderColumnsBy}, and
   * {@link Builder#putAll}
   *

    assertThat(copy.comparator()).isEqualTo(Ordering.natural());
  }

  public void testCopyOfSingletonMap() {
    ImmutableSortedMap<String, Integer> copy = ImmutableSortedMap.copyOf(singletonMap("one", 1));
    assertMapEquals(copy, "one", 1);
    assertThat(ImmutableSortedMap.copyOf(copy)).isSameInstanceAs(copy);
    assertThat(copy.comparator()).isEqualTo(Ordering.natural());
  }

  public void testCopyOf() {

   *
   * <p>The {@link Table#cellSet()} iteration order of the provided table determines the iteration
   * ordering of all views in the returned table. Note that some views of the original table and the
   * copied table may have different iteration orders. For more control over the ordering, create a
   * {@link Builder} and call {@link Builder#orderRowsBy}, {@link Builder#orderColumnsBy}, and
   * {@link Builder#putAll}
   *

 * @author Kevin Bourrillion
 * @author Ben Yu
 * @since 12.0
 */
@GwtIncompatible
@J2ktIncompatible
@NullMarked
public final class ArbitraryInstances {

  private static final Ordering<Field> BY_FIELD_NAME =
      new Ordering<Field>() {
        @Override
        public int compare(Field left, Field right) {
          return left.getName().compareTo(right.getName());
        }
      };

  /**

      implements TestSetGenerator<UnhashableObject> {}

  private static Ordering<String> createExplicitComparator(String[] elements) {
    // Collapse equal elements, which Ordering.explicit() doesn't support, while
    // maintaining the ordering by first occurrence.
    Set<String> elementsPlus = new LinkedHashSet<>();
    elementsPlus.add(BEFORE_FIRST);

   * KeyAbsentBehavior)} using {@link Ordering#natural}.
   */
  @SuppressWarnings("rawtypes") // https://github.com/google/guava/issues/989
  public static <E extends Comparable> int binarySearch(
      List<? extends E> list,
      E e,
      KeyPresentBehavior presentBehavior,
      KeyAbsentBehavior absentBehavior) {
    checkNotNull(e);
    return binarySearch(list, e, Ordering.natural(), presentBehavior, absentBehavior);

 * @author Kevin Bourrillion
 * @author Ben Yu
 * @since 12.0
 */
@GwtIncompatible
@J2ktIncompatible
@NullMarked
public final class ArbitraryInstances {

  private static final Ordering<Field> BY_FIELD_NAME =
      new Ordering<Field>() {
        @Override
        public int compare(Field left, Field right) {
          return left.getName().compareTo(right.getName());
        }
      };

  /**

    assertThat(copy.keySet()).containsExactly("google", "tree").inOrder();
    assertThat(copy.get("google")).containsExactly(2, 6).inOrder();
    assertEquals(Ordering.natural(), copy.keyComparator());
    assertEquals(Ordering.natural(), copy.valueComparator());
    assertEquals(Ordering.natural(), copy.get("google").comparator());
  }

  public void testToString() {
    Multimap<String, Integer> multimap = create();