public static Cons yieldConditionTree(Stella_Class renamed_Class) {
    { Cons defn = Stella_Class.yieldClosClassTree(renamed_Class);

      defn.firstSetter(Stella.internCommonLispSymbol("DEFINE-CONDITION"));
      if (defn.rest.rest.rest.rest != null) {
        defn.rest.rest.rest.rest = Stella.NIL;
      }
      return (defn);
    }
  }