@Contract(value = "null -> false", pure = true)
  public static boolean isJdkOptionalClassName(@Nullable String className) {
    return JAVA_UTIL_OPTIONAL.equals(className) ||
         OPTIONAL_INT.equals(className) || OPTIONAL_LONG.equals(className) || OPTIONAL_DOUBLE.equals(className);
  }
@Contract(value = "null -> false", pure = true)
  public static boolean isJdkOptionalClassName(@Nullable String className)