public static boolean wrapperP(Stella_Object x) {
    if (Stella.$CLASS_HIERARCHY_BOOTEDp$) {
      return ((x != null) &&
          Stella_Object.isaP(x, Stella.SGT_STELLA_WRAPPER));
    }
    return (Stella_Object.booleanP(x) ||
        (Stella_Object.integerP(x) ||
         (Stella_Object.longIntegerP(x) ||
          (Stella_Object.floatP(x) ||
           (Stella_Object.stringP(x) ||
            (Stella_Object.characterP(x) ||
             Stella_Object.bootstrapIsaP(x, Stella.SGT_STELLA_WRAPPER)))))));
  }