public void testContains() {
    assertThat(Floats.contains(EMPTY, (float) 1)).isFalse();
    assertThat(Floats.contains(ARRAY1, (float) 2)).isFalse();
    assertThat(Floats.contains(ARRAY234, (float) 1)).isFalse();
    assertThat(Floats.contains(new float[] {(float) -1}, (float) -1)).isTrue();
    assertThat(Floats.contains(ARRAY234, (float) 2)).isTrue();
    assertThat(Floats.contains(ARRAY234, (float) 3)).isTrue();

    ImmutableLongArray iia = ImmutableLongArray.of(1, 1, 2, 3, 5, 8);
    assertThat(iia.contains(1)).isTrue();
    assertThat(iia.contains(8)).isTrue();
    assertThat(iia.contains(4)).isFalse();
    assertThat(ImmutableLongArray.of(13).contains(13)).isTrue();
    assertThat(ImmutableLongArray.of().contains(21)).isFalse();
    assertThat(iia.subArray(1, 5).contains(1)).isTrue();
  }

  public void testForEach() {

      private static final long serialVersionUID = 1L;

      @Override
      public boolean contains(@Nullable Object element) {
        Preconditions.checkNotNull(element);
        return super.contains(element);
      }
    }
    Collection<Integer> nums = new CollectionThatThrowsNPE<>();
    Predicate<@Nullable Integer> isFalse = Predicates.in(nums);

  public void testContains() {
    assertThat(Shorts.contains(EMPTY, (short) 1)).isFalse();
    assertThat(Shorts.contains(ARRAY1, (short) 2)).isFalse();
    assertThat(Shorts.contains(ARRAY234, (short) 1)).isFalse();
    assertThat(Shorts.contains(new short[] {(short) -1}, (short) -1)).isTrue();
    assertThat(Shorts.contains(ARRAY234, (short) 2)).isTrue();
    assertThat(Shorts.contains(ARRAY234, (short) 3)).isTrue();

   *         .build();
   * }</pre>
   *
   * <p>Builder instances can be reused; it is safe to call {@link #build} multiple times to build
   * multiple multimaps in series. Each multimap contains the key-value mappings in the previously
   * created multimaps.
   *
   * @since 2.0
   */
  public static final class Builder<K, V> extends ImmutableMultimap.Builder<K, V> {
    /**

  }

  @Override
  public int count(@CheckForNull Object element) {
    try {
      @SuppressWarnings("unchecked")
      E e = (E) element;
      AvlNode<E> root = rootReference.get();
      if (!range.contains(e) || root == null) {
        return 0;
      }
      return root.count(comparator(), e);
    } catch (ClassCastException | NullPointerException e) {
      return 0;
    }
  }

    }
  }

  /** constructor with empty array has size 0 and contains no elements */
  public void testConstructorEmptyArray() {
    AtomicDoubleArray aa = new AtomicDoubleArray(new double[0]);
    assertEquals(0, aa.length());
    assertThrows(IndexOutOfBoundsException.class, () -> aa.get(0));
  }

  /** constructor with length zero has size 0 and contains no elements */
  public void testConstructorZeroLength() {

/**
 * Tester for {@code Spliterator} implementations.
 *
 * @since 21.0
 */
@GwtCompatible
@ElementTypesAreNonnullByDefault
public final class SpliteratorTester<E extends @Nullable Object> {
  /** Return type from "contains the following elements" assertions. */
  public interface Ordered {
    /**
     * Attests that the expected values must not just be present but must be present in the order
     * they were given.
     */

   *
   * <p>The returned supplier is thread-safe. The delegate's {@code get()} method will be invoked at
   * most once unless the underlying {@code get()} throws an exception. The supplier's serialized
   * form does not contain the cached value, which will be recalculated when {@code get()} is called
   * on the deserialized instance.
   *
   * <p>When the underlying delegate throws an exception then this memoizing supplier will keep

    KeySet(ConcurrentMap<?, ?> map) {
      super(map);
    }

    @Override
    public Iterator<K> iterator() {
      return new KeyIterator();
    }

    @Override
    public boolean contains(Object o) {
      return map.containsKey(o);
    }

    @Override
    public boolean remove(Object o) {
      return map.remove(o) != null;
    }
  }