/**
 * Creates maps, containing sample elements, to be tested.
 *
 * @author George van den Driessche
 */
@GwtCompatible
@NullMarked
public interface TestMapGenerator<K extends @Nullable Object, V extends @Nullable Object>
    extends TestContainerGenerator<Map<K, V>, Map.Entry<K, V>> {
  K[] createKeyArray(int length);

  V[] createValueArray(int length);

 * @author Kevin Bourrillion
 * @author Jared Levy
 * @since 2.0
 */
@GwtCompatible
public final class LinkedHashMultiset<E extends @Nullable Object>
    extends AbstractMapBasedMultiset<E> {

  /** Creates a new, empty {@code LinkedHashMultiset} using the default initial capacity. */
  public static <E extends @Nullable Object> LinkedHashMultiset<E> create() {
    return create(ObjectCountHashMap.DEFAULT_SIZE);
  }

  /**

        }

        @Override
        public <T extends java.util.EventListener> void addListener(T t) {
        }

        @Override
        public void addListener(Class<? extends java.util.EventListener> listenerClass) {
        }

        @Override
        public <T extends java.util.EventListener> T createListener(Class<T> clazz) {
            return null;
        }

    return result;
  }

  @SuppressWarnings("rawtypes") // class literals
  @Override
  protected List<Class<? extends AbstractTester>> getTesters() {
    List<Class<? extends AbstractTester>> testers = copyToList(super.getTesters());
    testers.add(SortedMapNavigationTester.class);
    return testers;
  }

  @Override
  public TestSuite createTestSuite() {
    if (!getFeatures().contains(KNOWN_ORDER)) {

  @J2ktIncompatible
  @GwtIncompatible // PriorityBlockingQueue
  public static <E extends Comparable> PriorityBlockingQueue<E> newPriorityBlockingQueue(
      Iterable<? extends E> elements) {
    if (elements instanceof Collection) {
      return new PriorityBlockingQueue<>((Collection<? extends E>) elements);
    }
    PriorityBlockingQueue<E> queue = new PriorityBlockingQueue<>();

   */
  public static <F extends @Nullable Object, T extends @Nullable Object> Collection<T> transform(
      Collection<F> fromCollection, Function<? super F, T> function) {
    return new TransformedCollection<>(fromCollection, function);
  }

  private static final class TransformedCollection<
          F extends @Nullable Object, T extends @Nullable Object>
      extends AbstractCollection<T> {

        }

        @Override
        public <T extends java.util.EventListener> void addListener(T t) {
        }

        @Override
        public void addListener(Class<? extends java.util.EventListener> listenerClass) {
        }

        @Override
        public <T extends java.util.EventListener> T createListener(Class<T> clazz) {
            return null;
        }

   * (you can omit the comparator if it is the natural order).
   */
  public <F extends @Nullable Object> Ordering<F> onResultOf(Function<F, ? extends T> function) {
    return new ByFunctionOrdering<>(function, this);
  }

  <T2 extends T> Ordering<Entry<T2, ?>> onKeys() {
    return onResultOf(Entry::getKey);
  }

  /**

 * implementation.
 *
 * @author Louis Wasserman
 */
@GwtIncompatible
public class MultimapTestSuiteBuilder<K, V, M extends Multimap<K, V>>
    extends PerCollectionSizeTestSuiteBuilder<
        MultimapTestSuiteBuilder<K, V, M>, TestMultimapGenerator<K, V, M>, M, Entry<K, V>> {

  public static <K, V, M extends Multimap<K, V>> MultimapTestSuiteBuilder<K, V, M> using(
      TestMultimapGenerator<K, V, M> generator) {

 *
 * @author Louis Wasserman
 * @since 14.0
 */
@SuppressWarnings("rawtypes") // https://github.com/google/guava/issues/989
@GwtIncompatible
public final class ImmutableRangeSet<C extends Comparable> extends AbstractRangeSet<C>
    implements Serializable {

  private static final ImmutableRangeSet<Comparable<?>> EMPTY =
      new ImmutableRangeSet<>(ImmutableList.of());