return ((Map<?, ?>) value).isEmpty();
      } else if (value instanceof Optional) {
        return !((Optional) value).isPresent();
      } else if (value.getClass().isArray()) {
        return Array.getLength(value) == 0;
      }
      return false;
    }

    /**
     * Returns a string in the format specified by {@link MoreObjects#toStringHelper(Object)}.
     *

      }

      EndpointPair<?> other = (EndpointPair<?>) obj;
      if (isOrdered() != other.isOrdered()) {
        return false;
      }

      return source().equals(other.source()) && target().equals(other.target());
    }

    @Override
    public int hashCode() {
      return Objects.hash(source(), target());
    }

    @Override
    public String toString() {

     */
    public static String getDefaultDomain() {
        return DEFAULT_DOMAIN;
    }

    /**
     * Returns the default workstation from the current environment.
     *
     * @return A <code>String</code> containing the default workstation.
     */
    public static String getDefaultWorkstation() {
        return DEFAULT_WORKSTATION;
    }

    public Writer append(@Nullable CharSequence csq) {
      return this;
    }

    @Override
    public Writer append(@Nullable CharSequence csq, int start, int end) {
      checkPositionIndexes(start, end, csq == null ? "null".length() : csq.length());
      return this;
    }

    @Override
    public Writer append(char c) {
      return this;
    }

    @Override
    public void flush() {}

        versionNo = null;

    }

    /**
     * Returns the default current page number.
     *
     * @return The default current page number.
     */
    protected int getDefaultCurrentPageNumber() {
        return DEFAULT_CURRENT_PAGE_NUMBER;
    }

    /**
     * Returns the total number of records.
     *
     * @return The total number of records.
     */

      return result;
    }
    return new UnmodifiableIterator<T>() {
      @Override
      public boolean hasNext() {
        return iterator.hasNext();
      }

      @Override
      @ParametricNullness
      public T next() {
        return iterator.next();
      }
    };
  }

  /**
   * Simply returns its argument.
   *

        if (StringUtil.isEmpty(s1) && StringUtil.isEmpty(s2)) {
            return null;
        }
        if (!StringUtil.isEmpty(s1) && StringUtil.isEmpty(s2)) {
            return s1;
        }
        if (StringUtil.isEmpty(s1) && !StringUtil.isEmpty(s2)) {
            return s2;
        }
        return s1 + '.' + s2;
    }

     *
     * @return An array of the parameter types of the constructor
     */
    Class<?>[] getParameterTypes();

    /**
     * Returns {@literal true} if the constructor is {@literal public}.
     *
     * @return {@literal true} if the constructor is {@literal public}
     */
    boolean isPublic();

    /**

    super(directed);
  }

  /** Returns a {@link ValueGraphBuilder} for building directed graphs. */
  public static ValueGraphBuilder<Object, Object> directed() {
    return new ValueGraphBuilder<>(true);
  }

  /** Returns a {@link ValueGraphBuilder} for building undirected graphs. */
  public static ValueGraphBuilder<Object, Object> undirected() {
    return new ValueGraphBuilder<>(false);
  }

  /**

    switch (totalCharacters) {
      case 0:
        return none();
      case 1:
        return is((char) table.nextSetBit(0));
      case 2:
        char c1 = (char) table.nextSetBit(0);
        char c2 = (char) table.nextSetBit(c1 + 1);
        return isEither(c1, c2);
      default:
        return isSmall(totalCharacters, table.length())
            ? SmallCharMatcher.from(table, description)