code: public static SequenceQuality getUniformQuality(byte qualityValue, int length) {
          byte[] data = new byte[length];
          Arrays.fill(data, qualityValue);
          return new SequenceQuality(data, true);
      }
docs: Creates a phred sequence quality containing only given values of quality.
  
  @param qualityValue value to fill the quality values with
  @param length       size of quality string