@Override
    public int size() {
      return distinctElements();
    }
  }

  Set<Entry<E>> createEntrySet() {
    return new EntrySet();
  }

  abstract Iterator<Entry<E>> entryIterator();

  abstract int distinctElements();

  // Object methods

  /**
   * {@inheritDoc}
   *
   * <p>This implementation returns {@code true} if {@code object} is a multiset of the same size

import java.util.List;
import java.util.Set;
import org.jspecify.annotations.NullMarked;

/**
 * An abstract TestSetGenerator for generating sets containing enum values.
 *
 * @author Kevin Bourrillion
 */
@GwtCompatible
@NullMarked
public abstract class TestEnumSetGenerator implements TestSetGenerator<AnEnum> {
  @Override
  public SampleElements<AnEnum> samples() {
    return new Enums();

abstract class AndroidHomeWarmupTask : DefaultTask() {

    @get:OutputDirectory
    abstract val warmupProjectsDirectory: DirectoryProperty

    @get:Input
    abstract val sdkVersions: ListProperty<SdkVersion>

    @get:Internal
    abstract val rootProjectDir: DirectoryProperty

    @get:Inject
    abstract val execOperations: ExecOperations

    @get:Optional

  abstract ContiguousSet<C> headSetImpl(C toElement, boolean inclusive);

  @SuppressWarnings("MissingOverride") // Supermethod does not exist under GWT.
  abstract ContiguousSet<C> subSetImpl(
      C fromElement, boolean fromInclusive, C toElement, boolean toInclusive);

  @SuppressWarnings("MissingOverride") // Supermethod does not exist under GWT.

 */
@GwtIncompatible
abstract class ToDoubleRounder<X extends Number & Comparable<X>> {
  /**
   * Returns x rounded to either the greatest double less than or equal to the precise value of x,
   * or the least double greater than or equal to the precise value of x.
   */
  abstract double roundToDoubleArbitrarily(X x);

  /** Returns the sign of x: either -1, 0, or 1. */
  abstract int sign(X x);

 * compile tasks to permit some of these requirements.
 */
abstract class JvmCompilation {

    abstract val name: String

    /**
     * Set this flag to true if the compilation compiles against JDK internal classes.
     *
     * This workaround should be used sparingly.
     */
    abstract val usesJdkInternals: Property<Boolean>

    /**

 *
 * @author Shardul Deo
 * @since 4.0
 */
@GwtCompatible
public abstract class ForwardingListenableFuture<V extends @Nullable Object>
    extends ForwardingFuture<V> implements ListenableFuture<V> {

  /** Constructor for use by subclasses. */
  protected ForwardingListenableFuture() {}

  @Override
  protected abstract ListenableFuture<? extends V> delegate();

  @Override

        }
    }
}


abstract class DependencyAdditionRule @Inject constructor(
    private val coordinates: String
) : ComponentMetadataRule {
    override fun execute(context: ComponentMetadataContext) {
        context.details.allVariants {
            withDependencies {
                add(coordinates)
            }
        }
    }
}

   *
   * @param <K0> The upper bound on the key type of the generated multimap.
   * @since 16.0
   */
  public abstract static class MultimapBuilderWithKeys<K0 extends @Nullable Object> {

    private static final int DEFAULT_EXPECTED_VALUES_PER_KEY = 2;

    MultimapBuilderWithKeys() {}

    abstract <K extends K0, V extends @Nullable Object> Map<K, Collection<V>> createMap();

 * Entry}.
 *
 * @author Jared Levy
 */
@GwtCompatible
abstract class AbstractMapEntry<K extends @Nullable Object, V extends @Nullable Object>
    implements Entry<K, V> {

  @Override
  @ParametricNullness
  public abstract K getKey();

  @Override
  @ParametricNullness
  public abstract V getValue();

  @Override
  @ParametricNullness