code: @Deprecated
    public static HashOrderMixingStrategy none() {
      return new HashOrderMixingStrategy() {
        @Override
        public int newKeyMixer(int newContainerBufferSize) {
          return 0;
        }
  
        @Override
        public HashOrderMixingStrategy clone() {
          return this;
        }
      };
    }
docs: This strategy does not change the hash order of keys at all. This
  is inherently unsafe with hash containers using linear conflict
  addressing. The only use case when this can be useful is to count/ collect
  unique keys (for which scatter tables should be used).
  
  @deprecated Permanently deprecated as a warning signal.