code: protected T setNiftyName(String niftyName)
      {
          Preconditions.checkNotNull(niftyName, "niftyName cannot be null");
          this.niftyName = niftyName;
          return (T) this;
      }
docs: Sets an identifier which will be added to all thread created by the boss and worker
  executors.
  
  @param niftyName
  @return