public static boolean characterP(Stella_Object x) {
    if (Stella.$CLASS_HIERARCHY_BOOTEDp$) {
      return ((x != null) &&
          Stella_Object.isaP(x, Stella.SGT_STELLA_CHARACTER_WRAPPER));
    }
    return (Stella_Object.bootstrapIsaP(x, Stella.SGT_STELLA_CHARACTER_WRAPPER));
  }