postReadCleanup();
      }
    }

    /**
     * This method is a convenience for testing. Code should call {@link
     * MapMakerInternalMap#containsValue} directly.
     */
    @VisibleForTesting
    boolean containsValue(Object value) {
      try {
        if (count != 0) { // read-volatile
          AtomicReferenceArray<E> table = this.table;
          int length = table.length();

      for (int i = WARMUP_MIN; i < WARMUP_MAX; i++) {
        Entry<Object, Object> entry = warmed.get(i - WARMUP_MIN);
        assertTrue(cache.asMap().containsKey(entry.getKey()));
        assertTrue(cache.asMap().containsValue(entry.getValue()));
        // this getUnchecked() call shouldn't be a cache miss; verified below
        assertEquals(entry.getValue(), cache.getUnchecked(entry.getKey()));
      }

      return backingMap;
    }

    @Override
    public boolean containsKey(Object key) {
      return standardContainsKey(key);
    }

    @Override
    public boolean containsValue(Object value) {
      return standardContainsValue(value);
    }

    @Override
    public void putAll(Map<? extends K, ? extends V> map) {
      standardPutAll(map);
    }

    @Override

  }

  @Override
  public boolean isEmpty() {
    return size() == 0;
  }

  @Override
  public boolean containsValue(@Nullable Object value) {
    Map<K, V> delegate = delegateOrNull();
    if (delegate != null) {
      return delegate.containsValue(value);
    }
    for (int i = 0; i < size; i++) {
      if (Objects.equals(value, value(i))) {
        return true;
      }
    }

    return wrappedHashMapTests(
        new WrappedHashMapGenerator() {
          @Override
          Map<String, String> wrap(HashMap<String, String> map) {
            if (map.containsValue(null)) {
              throw new NullPointerException();
            }

            return new AbstractMap<String, String>() {
              @Override
              public Set<Entry<String, String>> entrySet() {

  @Override
  public boolean contains(@Nullable Object rowKey, @Nullable Object columnKey) {
    return get(rowKey, columnKey) != null;
  }

  @Override
  public boolean containsValue(@Nullable Object value) {
    return values().contains(value);
  }

  /**
   * Guaranteed to throw an exception and leave the table unmodified.
   *
   * @throws UnsupportedOperationException always

  public boolean isEmpty() {
    return size() == 0;
  }

  @Override
  public boolean containsKey(@Nullable Object key) {
    return get(key) != null;
  }

  @Override
  public boolean containsValue(@Nullable Object value) {
    return values().contains(value);
  }

  private transient @Nullable ImmutableSet<Entry<K, V>> cachedEntrySet = null;

  @Override

    }

    @Override
    public boolean containsKey(@Nullable Object key) {
      return map.containsKey(key);
    }

    @Override
    public boolean containsValue(@Nullable Object value) {
      return map.containsValue(value);
    }

    @Override
    public boolean containsEntry(@Nullable Object key, @Nullable Object value) {
      return map.entrySet().contains(Maps.immutableEntry(key, value));

    }

    @Override
    public boolean containsKey(@Nullable Object key) {
      return map.containsKey(key);
    }

    @Override
    public boolean containsValue(@Nullable Object value) {
      return map.containsValue(value);
    }

    @Override
    public boolean containsEntry(@Nullable Object key, @Nullable Object value) {
      return map.entrySet().contains(Maps.immutableEntry(key, value));

  @Override
  public boolean containsRow(@Nullable Object rowKey) {
    return rowKey != null && safeContainsKey(backingMap, rowKey);
  }

  @Override
  public boolean containsValue(@Nullable Object value) {
    return value != null && super.containsValue(value);
  }

  @Override
  public @Nullable V get(@Nullable Object rowKey, @Nullable Object columnKey) {