}

    /**
     * Returns the primary domain name of the server.
     *
     * @return the primaryDomain
     */
    public final String getPrimaryDomain() {
        return this.primaryDomain;
    }

    /**
     * Indicates whether the session was established as a guest.
     *
     * @return the isLoggedInAsGuest
     */
    public final boolean isLoggedInAsGuest() {

        return set2.containsAll(set1);
      }

      @Override
      public boolean contains(@Nullable Object element) {
        return set1.contains(element) && !set2.contains(element);
      }

      @Override
      int minSize() {
        return max(minSize(set1) - maxSize(set2), 0);
      }

      @Override
      int maxSize() {
        return maxSize(set1);
      }

        return (T) invoke(method, null, args);
    }

    /**
     * Returns whether the method is <code>abstract</code>.
     *
     * @param method
     *            The method. Cannot be {@literal null}
     * @return <code>abstract</code> if the method is abstract
     */
    public static boolean isAbstract(final Method method) {
        return Modifier.isAbstract(method.getModifiers());

  SortedSet<V> createUnmodifiableEmptyCollection() {
    return unmodifiableCollectionSubclass(createCollection());
  }

  @Override
  <E extends @Nullable Object> SortedSet<E> unmodifiableCollectionSubclass(
      Collection<E> collection) {
    if (collection instanceof NavigableSet) {
      return unmodifiableNavigableSet((NavigableSet<E>) collection);
    } else {
      return unmodifiableSortedSet((SortedSet<E>) collection);
    }
  }

            }
        }
        return locale;
    }

    private static Supplier<Locale> defaultLocaleSupplier;

    /**
     * Returns the default locale.
     *
     * @return the default locale
     */
    public static Locale getDefault() {
        if (defaultLocaleSupplier != null) {
            return defaultLocaleSupplier.get();
        }
        return Locale.ENGLISH;
    }

    /**

   * to the string returned by {@link #serviceName}
   */
  protected Executor executor() {
    return command -> newThread(serviceName(), command).start();
  }

  @Override
  public String toString() {
    return serviceName() + " [" + state() + "]";
  }

  @Override
  public final boolean isRunning() {
    return delegate.isRunning();
  }

    return member.getModifiers();
  }

  @Override
  public final boolean isSynthetic() {
    return member.isSynthetic();
  }

  /** Returns true if the element is public. */
  public final boolean isPublic() {
    return Modifier.isPublic(getModifiers());
  }

  /** Returns true if the element is protected. */
  public final boolean isProtected() {

   * @param string the string to test and possibly return
   * @return {@code string} if it is not null; {@code ""} otherwise
   */
  static String nullToEmpty(@Nullable String string) {
    return (string == null) ? "" : string;
  }

  /**
   * Returns the string if it is not empty, or a null string otherwise.
   *
   * @param string the string to test and possibly return
   * @return {@code string} if it is not empty; {@code null} otherwise

        case HALF_DOWN:
        case HALF_UP:
          return Double.MAX_VALUE * sign(x);
        case FLOOR:
          return (roundArbitrarily == Double.POSITIVE_INFINITY)
              ? Double.MAX_VALUE
              : Double.NEGATIVE_INFINITY;
        case CEILING:
          return (roundArbitrarily == Double.POSITIVE_INFINITY)
              ? Double.POSITIVE_INFINITY
              : -Double.MAX_VALUE;
        case UP:

    Map<K, Long> result = asMap;
    return (result == null) ? asMap = createAsMap() : result;
  }

  private Map<K, Long> createAsMap() {
    return Collections.unmodifiableMap(map);
  }

  /** Returns true if this map contains a mapping for the specified key. */
  public boolean containsKey(Object key) {
    return map.containsKey(key);
  }

  /**