src/jdk/nashorn/internal/objects/PrototypeObject.java

*** 55,68 ****
          final ArrayList<Property> properties = new ArrayList<>(1);
          properties.add(AccessorProperty.create("constructor", Property.NOT_ENUMERABLE, GET_CONSTRUCTOR, SET_CONSTRUCTOR));
          map$ = PropertyMap.newMap(properties);
      }
  
-     static PropertyMap getInitialMap() {
-         return map$;
-     }
- 
      private PrototypeObject(final Global global, final PropertyMap map) {
          super(global.getObjectPrototype(), map != map$? map.addAll(map$) : map$);
      }
  
      PrototypeObject() {
--- 55,64 ----