*
 * @author Louis Wasserman
 */
@SuppressWarnings("rawtypes") // https://github.com/google/guava/issues/989
@GwtIncompatible
abstract class AbstractRangeSet<C extends Comparable> implements RangeSet<C> {
  AbstractRangeSet() {}

  @Override
  public boolean contains(C value) {
    return rangeContaining(value) != null;
  }

  @Override

 *
 * @author Louis Wasserman
 * @since 14.0
 */
@SuppressWarnings("rawtypes") // https://github.com/google/guava/issues/989
@GwtIncompatible
public final class ImmutableRangeSet<C extends Comparable> extends AbstractRangeSet<C>
    implements Serializable {

  private static final ImmutableRangeSet<Comparable<?>> EMPTY =
      new ImmutableRangeSet<>(ImmutableList.of());

  private static final ImmutableRangeSet<Comparable<?>> ALL =