code: public MergeOptions<E> doNotUpdate(Attribute... attributes)
      {
          if (this.doNotUpdate == null)
          {
              this.doNotUpdate = attributes;
          }
          else
          {
              List<Attribute> all = FastList.newListWith(this.doNotUpdate);
              for(Attribute a: attributes) all.add(a);
              this.doNotUpdate = new Attribute[all.size()];
              all.toArray(this.doNotUpdate);
          }
          return this;
      }
docs: Do not update these attributes
  @param attributes
  @return