*
   * @since 14.0
   */
  public static HashFunction adler32() {
    return ChecksumType.ADLER_32.hashFunction;
  }

  @Immutable
  enum ChecksumType implements ImmutableSupplier<Checksum> {
    CRC_32("Hashing.crc32()") {
      @Override
      public Checksum get() {
        return new CRC32();
      }
    },
    ADLER_32("Hashing.adler32()") {

  private static final long SPIN_THRESHOLD_NANOS = 1000L;

  @VisibleForTesting
  static String atomicHelperTypeForTest() {
    return ATOMIC_HELPER.atomicHelperTypeForTest();
  }

  private enum VarHandleAtomicHelperMaker {
    INSTANCE {
      /**
       * Implementation used by non-J2ObjC environments (aside, of course, from those that have
       * supersource for the entirety of {@link AbstractFutureState}).

        }
    }

    /**
     * Enumeration of different artifact types supported by Fess.
     * Each type has a specific ID prefix used to identify artifacts of that type.
     */
    public enum ArtifactType {
        /** Data store plugins */
        DATA_STORE("fess-ds"), //
        /** Theme plugins */
        THEME("fess-theme"), //
        /** Ingest processor plugins */

  }

  private static int totalSize(Iterable<? extends Entry<?>> entries) {
    int sum = 0;
    for (Entry<?> entry : entries) {
      sum += entry.getCount();
    }
    return sum;
  }

  private enum SubMultisetSpec {
    TAIL_CLOSED {
      @Override
      <E> List<Entry<E>> expectedEntries(int targetEntry, List<Entry<E>> entries) {
        return entries.subList(targetEntry, entries.size());
      }

 */
public class SuggestItem {

    /**
     * The kind of suggest item.
     */
    public enum Kind {
        /** Document kind. */
        DOCUMENT("document"),
        /** Query kind. */
        QUERY("query"),
        /** User kind. */
        USER("user");

        private final String kind;

   *
   * @since 2.0
   */
  public static Comparator<int[]> lexicographicalComparator() {
    return LexicographicalComparator.INSTANCE;
  }

  private enum LexicographicalComparator implements Comparator<int[]> {
    INSTANCE;

    @Override
    // A call to bare "min" or "max" would resolve to our varargs method, not to any static import.

    return (UnmodifiableListIterator<T>) ArrayItr.EMPTY;
  }

  /**
   * This is an enum singleton rather than an anonymous class so ProGuard can figure out it's only
   * referenced by emptyModifiableIterator().
   */
  private enum EmptyModifiableIterator implements Iterator<Object> {
    INSTANCE;

    @Override
    public boolean hasNext() {
      return false;

  public static Predicate<CharSequence> contains(Pattern pattern) {
    return new ContainsPatternPredicate(new JdkPattern(pattern));
  }

  // End public API, begin private implementation classes.

  private enum ObjectPredicate implements Predicate<@Nullable Object> {
    /**
     * @see Predicates#alwaysTrue()
     */
    ALWAYS_TRUE {
      @Override
      public boolean apply(@Nullable Object o) {

            if (tempStr != null) {
                tempStr.intern();
            }
        }
    }

    /**
     * Authentication strategy
     *
     *
     */
    public enum AuthenticationType {
        /**
         * Null/anonymous authentication
         *
         * Login with no credentials
         */
        NULL,
        /**
         * Guest authentication

      if (newArg == null || Objects.equals(args.get(i), newArg)) {
        if (params.get(i).getType().getRawType().isEnum()) {
          continue; // Nothing better we can do if it's single-value enum
        }
        throw new ParameterHasNoDistinctValueException(params.get(i));
      }
      newArgs.set(i, newArg);
      tester.addEqualityGroup(createInstance(factory, newArgs));