code: public MapBuilder<KEY, VALUE> putAll(Map<KEY, VALUE> map) {
      getMap().putAll(map);
      return this;
    }
docs: Puts all the {@link KEY keys} and {@link VALUE values} from the given {@link Map} into the {@link Map} being built
  by this {@link MapBuilder builder}.
  
  @param map {@link Map} containing the {@link KEY keys} and {@link VALUE values} to put into this {@link Map}.
  @return this {@link MapBuilder}.
  @see java.util.Map#putAll(Map)