* @since 19.0
     */
    @CanIgnoreReturnValue
    @Override
    public Builder<K, V> putAll(Iterable<? extends Entry<? extends K, ? extends V>> entries) {
      super.putAll(entries);
      return this;
    }

    @CanIgnoreReturnValue
    @Override
    public Builder<K, V> putAll(K key, Iterable<? extends V> values) {
      super.putAll(key, values);
      return this;
    }

                            || type.getName().equals("java.util.Collection")
                            || type.getName().equals("java.util.Set")
                            || type.getName().equals("java.util.Iterable")) {
                        type = type.getTypeArgs().get(0);
                        multiValued = true;
                    }
                    classDoc.addClassBlock(new BlockDoc(methodDoc, property, type, multiValued));

   *
   * @param elements the elements that the multiset should contain
   */
  public static <E extends @Nullable Object> LinkedHashMultiset<E> create(
      Iterable<? extends E> elements) {
    LinkedHashMultiset<E> multiset = create(Multisets.inferDistinctElements(elements));
    Iterables.addAll(multiset, elements);
    return multiset;
  }

      return SerializableTester.reserialize(gen.create(elements));
    }

    @Override
    public E[] createArray(int length) {
      return gen.createArray(length);
    }

    @Override
    public Iterable<E> order(List<E> insertionOrder) {
      return gen.order(insertionOrder);
    }
  }

  private static Set<Feature<?>> computeReserializedCollectionFeatures(Set<Feature<?>> features) {

   * com.google.common.collect.testing.features.CollectionFeature#KNOWN_ORDER}, the tests will look
   * only at the returned contents without regard for order.
   */
  Iterable<E> order(List<E> insertionOrder);

        lastFromForgetMeNot = null;
      }
    }

    /** Returns true if an exact reference (==) was found and removed from the supplied iterable. */
    private boolean foundAndRemovedExactReference(Iterable<E> elements, E target) {
      for (Iterator<E> it = elements.iterator(); it.hasNext(); ) {
        E element = it.next();
        if (element == target) {
          it.remove();

 */
@GwtCompatible
@NullMarked
public class EmptyImmutableTableTest extends AbstractImmutableTableTest {
  private static final ImmutableTable<Character, Integer, String> INSTANCE = ImmutableTable.of();

  @Override
  Iterable<ImmutableTable<Character, Integer, String>> getTestInstances() {
    return ImmutableSet.of(INSTANCE);
  }

  public void testHashCode() {
    assertEquals(0, INSTANCE.hashCode());
  }

 * @since 10.0
 */
@GwtCompatible
public enum RemovalCause {
  /**
   * The entry was manually removed by the user. This can result from the user invoking {@link
   * Cache#invalidate}, {@link Cache#invalidateAll(Iterable)}, {@link Cache#invalidateAll()}, {@link
   * Map#remove}, {@link ConcurrentMap#remove}, or {@link Iterator#remove}.
   */
  EXPLICIT {
    @Override
    boolean wasEvicted() {
      return false;
    }
  },

     *
     * @param elements the {@code Iterable} to add to the {@code ImmutableList}
     * @return this {@code Builder} object
     * @throws NullPointerException if {@code elements} is null or contains a null element
     */
    @CanIgnoreReturnValue
    @Override
    public Builder<E> addAll(Iterable<? extends E> elements) {
      checkNotNull(elements);

    public String toString() {
      return "CharSource.empty()";
    }
  }

  private static final class ConcatenatedCharSource extends CharSource {

    private final Iterable<? extends CharSource> sources;

    ConcatenatedCharSource(Iterable<? extends CharSource> sources) {
      this.sources = checkNotNull(sources);
    }

    @Override
    public Reader openStream() throws IOException {