code: @Override
      protected String convertBytesToString(final byte[] random) {
          val output = new char[random.length];
          IntStream.range(0, random.length).forEach(i -> {
              val printableCharacters = getPrintableCharacters();
              val index = Math.abs(random[i] % printableCharacters.length);
              output[i] = printableCharacters[index];
          });
          return new String(output);
      }
docs: Convert bytes to string, taking into account {@link #PRINTABLE_CHARACTERS}.
  
  @param random the random
  @return the string