}

    @Override
    protected Set<Entry<K, Collection<V>>> createEntrySet() {
      return new EntrySet();
    }

    void removeValuesForKey(@Nullable Object key) {
      multimap.keySet().remove(key);
    }

    @WeakOuter
    final class EntrySet extends Maps.EntrySet<K, Collection<V>> {
      @Override
      Map<K, Collection<V>> map() {
        return AsMap.this;
      }

    }

    @Override
    protected Set<Entry<K, Collection<V>>> createEntrySet() {
      return new EntrySet();
    }

    void removeValuesForKey(@Nullable Object key) {
      multimap.keySet().remove(key);
    }

    @WeakOuter
    final class EntrySet extends Maps.EntrySet<K, Collection<V>> {
      @Override
      Map<K, Collection<V>> map() {
        return AsMap.this;
      }

  }

  // Would use Maps.immutableEntry
  public static <K extends @Nullable Object, V extends @Nullable Object> Entry<K, V> mapEntry(
      K key, V value) {
    return singletonMap(key, value).entrySet().iterator().next();
  }

  private static boolean isEmpty(Iterable<?> iterable) {
    return iterable instanceof Collection
        ? ((Collection<?>) iterable).isEmpty()
        : !iterable.iterator().hasNext();

            buf.append('[').append(json).append(']');
        } else if (value instanceof Map) {
            buf.append('{');
            final String json = ((Map<?, ?>) value).entrySet().stream().map(e -> {
                final StringBuilder tempBuf = new StringBuilder();
                appendJson(e.getKey().toString(), e.getValue(), tempBuf);
                return tempBuf.toString();

                    multimap =
                        Multimaps.filterEntries(
                            multimap,
                            not(Predicates.in(ImmutableMap.of("one", 159, "two", 265).entrySet())));
                    return filterKeys(multimap, not(Predicates.in(ImmutableSet.of("foo", "bar"))));
                  }
                })

   * containsKey(Object)}, nor by operations on the collection-views of {@link Cache#asMap}}. So,
   * for example, iterating through {@code Cache.asMap().entrySet()} does not reset access time for
   * the entries you retrieve.
   *
   * <p>When {@code duration} is zero, this method hands off to {@link #maximumSize(long)

    // TODO: can these be moved to MapInterfaceTest?
    for (Entry<K, V> entry : map.entrySet()) {
      assertThat(entry.toString()).isEqualTo(entry.getKey() + "=" + entry.getValue());
    }

    assertThat(map.toString()).isEqualTo("{" + JOINER.join(map.entrySet()) + "}");
    assertThat(map.entrySet().toString()).isEqualTo("[" + JOINER.join(map.entrySet()) + "]");

    for (Entry<K, V> entry : map.entrySet()) {
      assertThat(entry.toString()).isEqualTo(entry.getKey() + "=" + entry.getValue());
      assertEquals(entry.getKey(), bimap.inverse().get(entry.getValue()));
    }

    assertThat(map.toString()).isEqualTo("{" + JOINER.join(map.entrySet()) + "}");
    assertThat(map.entrySet().toString()).isEqualTo("[" + JOINER.join(map.entrySet()) + "]");

  }

  public void testToMultiset_empty() {
    assertThat(fluent().toMultiset()).isEmpty();
  }

  public void testToMap() {
    assertThat(fluent(1, 2, 3).toMap(Functions.toStringFunction()).entrySet())
        .containsExactly(immutableEntry(1, "1"), immutableEntry(2, "2"), immutableEntry(3, "3"))
        .inOrder();
  }

  public void testToMap_nullKey() {
    assertThrows(

  public void testEntrySetMutationThrows() {
    map.putInstance(String.class, "test");
    assertEquals(TypeToken.of(String.class), map.entrySet().iterator().next().getKey());
    assertEquals("test", map.entrySet().iterator().next().getValue());
    assertThrows(
        UnsupportedOperationException.class, () -> map.entrySet().iterator().next().setValue(1));
  }

  public void testEntrySetToArrayMutationThrows() {