String createdStr;
        final Date created = DocumentUtil.getValue(doc, fessConfig.getIndexFieldCreated(), Date.class);
        if (created != null) {
            final SimpleDateFormat sdf = new SimpleDateFormat(CoreLibConstants.DATE_FORMAT_ISO_8601_EXTEND);
            createdStr = sdf.format(created);
        } else {

    return new ImmutableClassToInstanceMap<>(ImmutableMap.of(type, value));
  }

  /**
   * Returns a new builder. The generated builder is equivalent to the builder created by the {@link
   * Builder} constructor.
   */
  public static <B> Builder<B> builder() {
    return new Builder<>();
  }

  /**
   * A builder for creating immutable class-to-instance maps. Example:
   *

  /**
   * Creates a new, empty {@code ConcurrentHashMultiset} using the default initial capacity, load
   * factor, and concurrency settings.
   */
  public static <E> ConcurrentHashMultiset<E> create() {
    return create(new ConcurrentHashMap<>());
  }

  /**
   * Creates a new {@code ConcurrentHashMultiset} containing the specified elements, using the

		debug.PrintStack()
		return metacache{}
	}

	// Grab a write lock, since we create one if we cannot find one.
	b.mu.Lock()
	defer b.mu.Unlock()

	// Check if exists already.
	if c, ok := b.caches[o.ID]; ok {
		c.lastHandout = time.Now()
		b.caches[o.ID] = c
		b.debugf("returning existing %v", o.ID)
		return c
	}

	if !o.Create {
		return metacache{
			id:     o.ID,
			bucket: o.Bucket,

      totalSize += values.size();
    }
  }

  /**
   * Creates an unmodifiable, empty collection of values.
   *
   * <p>This is used in {@link #removeAll} on an empty key.
   */
  Collection<V> createUnmodifiableEmptyCollection() {
    return unmodifiableCollectionSubclass(createCollection());
  }

  /**
   * Creates the collection of values for a single key.
   *

            Random random = new Random();

            while (true) {
                try {
                    ClassRealm classRealm = world.newRealm(realmId, null);

                    logger.debug("Created new class realm {}", realmId);

                    return classRealm;
                } catch (DuplicateRealmException e) {
                    realmId = id + '-' + random.nextInt();
                }
            }

   */
  @IgnoreJRERequirement // Users will use this only if they're already using Duration.
  public static RateLimiter create(double permitsPerSecond, Duration warmupPeriod) {
    return create(permitsPerSecond, toNanosSaturated(warmupPeriod), NANOSECONDS);
  }

  /**
   * Creates a {@code RateLimiter} with the specified stable throughput, given as "permits per

    /** Serial version UID for serialization */
    private static final long serialVersionUID = 1L;

    /**
     * Default constructor for file configuration pager.
     * Creates a new instance with default values.
     */
    public FileConfigPager() {
        // Default constructor
    }

    /** Default page size for pagination */
    public static final int DEFAULT_PAGE_SIZE = 20;

  // that should resolve the issue. This comes at the cost of adding more write barriers to the
  // implementations.

  private Futures() {}

  /**
   * Creates a {@code ListenableFuture} which has its value set immediately upon construction. The
   * getters just return the value. This {@code Future} can't be canceled or timed out and its

	}

	return target, nil
}

func isKafkaConnErr(err error) bool {
	// Sarama opens the circuit breaker after 3 consecutive connection failures.
	return err == sarama.ErrLeaderNotAvailable || err.Error() == "circuit breaker is open"