throw new UnsupportedOperationException("Please use putInstance() instead.");
  }

  @Override
  public Set<Entry<TypeToken<? extends @NonNull B>, B>> entrySet() {
    return UnmodifiableEntry.transformEntries(super.entrySet());
  }

  @Override
  protected Map<TypeToken<? extends @NonNull B>, B> delegate() {
    return backingMap;
  }

      assertTrue(multimap.containsEntry(entry.getKey(), entry.getValue()));
      size++;
    }
    assertEquals(expectedSize, size);

    int size2 = 0;
    for (Entry<K, Collection<V>> entry2 : multimap.asMap().entrySet()) {
      size2 += entry2.getValue().size();
    }
    assertEquals(expectedSize, size2);
  }

  @CollectionSize.Require(ZERO)
  public void testIsEmptyYes() {
    assertTrue(multimap().isEmpty());
  }

            }
            return size;
        }
        if (obj instanceof Map<?, ?>) {
            long size = 0;
            for (final Map.Entry<?, ?> entry : ((Map<?, ?>) obj).entrySet()) {
                size += sizeOf(entry.getKey());
                size += sizeOf(entry.getValue());
            }
            return size;
        }
        return 16L;
    }

    }

    @Override
    public Set<Entry<K, V>> entrySet() {
      return new ForwardingSet<Entry<K, V>>() {
        @Override
        protected Set<Entry<K, V>> delegate() {
          return delegate.entrySet();
        }

        @Override
        public Iterator<Entry<K, V>> iterator() {
          return Iterators.unmodifiableIterator(delegate.entrySet().iterator());
        }

        @Override

/**
 * This class provides a skeletal implementation of the {@link SortedMultiset} interface.
 *
 * <p>The {@link #count} and {@link #size} implementations all iterate across the set returned by
 * {@link Multiset#entrySet()}, as do many methods acting on the set returned by {@link
 * #elementSet()}. Override those methods for better performance.
 *
 * @author Louis Wasserman
 */
@GwtCompatible

                            .map(MavenProject::getArtifactId)
                            .collect(Collectors.groupingBy(Function.identity(), Collectors.counting()))
                            .entrySet()
                            .stream()
                            .filter(p -> p.getValue() > 1)
                            .map(Map.Entry::getKey)
                            .collect(Collectors.toSet());

      resetContainer(mapEntry(k0(), v0()), mapEntry(k0(), v1()), mapEntry(k0(), v0()));
      List<V> expectedValues = copyToList(values);

      Entry<K, Collection<V>> asMapEntry = multimap().asMap().entrySet().iterator().next();
      List<V> asMapValue = (List<V>) asMapEntry.getValue();
      asMapValue.remove(i);
      expectedValues.remove(i);

      assertGet(k0(), expectedValues);
    }
  }

      for (Object o : elements) {
        @SuppressWarnings("unchecked")
        Entry<String, Integer> entry = (Entry<String, Integer>) checkNotNull(o);
        builder.put(entry);
      }
      return builder.build().entrySet().asList();
    }
  }

  public static class ImmutableSortedMapKeyListGenerator extends TestStringListGenerator {
    @Override
    protected List<String> create(String[] elements) {

  @CollectionSize.Require(SEVERAL)
  public void testPollFirst() {
    assertEquals(a, navigableMap.pollFirstEntry());
    assertEquals(entries.subList(1, entries.size()), copyToList(navigableMap.entrySet()));
  }

  @MapFeature.Require(absent = SUPPORTS_REMOVE)
  public void testPollFirstUnsupported() {
    assertThrows(UnsupportedOperationException.class, () -> navigableMap.pollFirstEntry());
  }

  @CollectionSize.Require(SEVERAL)
  public void testPollFirst() {
    assertEquals(a, navigableMap.pollFirstEntry());
    assertEquals(entries.subList(1, entries.size()), copyToList(navigableMap.entrySet()));
  }

  @MapFeature.Require(absent = SUPPORTS_REMOVE)
  public void testPollFirstUnsupported() {
    assertThrows(UnsupportedOperationException.class, () -> navigableMap.pollFirstEntry());
  }