}

  @Override
  public boolean remove(@Nullable Object o) {
    Predicate<? super Entry<K, V>> entryPredicate = multimap.entryPredicate();
    for (Iterator<Entry<K, V>> unfilteredItr = multimap.unfiltered().entries().iterator();
        unfilteredItr.hasNext(); ) {
      Entry<K, V> entry = unfilteredItr.next();
      if (entryPredicate.apply(entry) && Objects.equals(entry.getValue(), o)) {
        unfilteredItr.remove();
        return true;

    private final Predicate<? super Entry<K, V>> entryPredicate;
    private final Map<K, V> filteredDelegate;

    FilteredEntryNavigableMap(
        NavigableMap<K, V> unfiltered, Predicate<? super Entry<K, V>> entryPredicate) {
      this.unfiltered = checkNotNull(unfiltered);
      this.entryPredicate = entryPredicate;
      this.filteredDelegate = new FilteredEntryMap<>(unfiltered, entryPredicate);
    }

    @Override

    private final Predicate<? super Entry<K, V>> entryPredicate;
    private final Map<K, V> filteredDelegate;

    FilteredEntryNavigableMap(
        NavigableMap<K, V> unfiltered, Predicate<? super Entry<K, V>> entryPredicate) {
      this.unfiltered = checkNotNull(unfiltered);
      this.entryPredicate = entryPredicate;
      this.filteredDelegate = new FilteredEntryMap<>(unfiltered, entryPredicate);
    }

    @Override

    this.keyPredicate = checkNotNull(keyPredicate);
  }

  @Override
  public Multimap<K, V> unfiltered() {
    return unfiltered;
  }

  @Override
  public Predicate<? super Entry<K, V>> entryPredicate() {
    return Maps.keyPredicateOnEntries(keyPredicate);
  }

  @Override
  public int size() {
    int size = 0;
    for (Collection<V> collection : asMap().values()) {
      size += collection.size();

      return filterEntries((SetMultimap<K, V>) unfiltered, entryPredicate);
    }
    return (unfiltered instanceof FilteredMultimap)
        ? filterFiltered((FilteredMultimap<K, V>) unfiltered, entryPredicate)
        : new FilteredEntryMultimap<K, V>(checkNotNull(unfiltered), entryPredicate);
  }

  /**
   * Returns a multimap containing the mappings in {@code unfiltered} that satisfy a predicate. The

 *
 * @author Jared Levy
 */
@GwtIncompatible // nottested
@NullUnmarked
public class FilteredMultimapTest extends TestCase {

  private static final Predicate<Entry<String, Integer>> ENTRY_PREDICATE =
      entry ->
          !Objects.equals(entry.getKey(), "badkey") && !Objects.equals(entry.getValue(), 55556);

  protected Multimap<String, Integer> create() {

 *
 * @author Jared Levy
 */
@GwtIncompatible // nottested
@NullUnmarked
public class FilteredMultimapTest extends TestCase {

  private static final Predicate<Entry<String, Integer>> ENTRY_PREDICATE =
      entry ->
          !Objects.equals(entry.getKey(), "badkey") && !Objects.equals(entry.getValue(), 55556);

  protected Multimap<String, Integer> create() {