code: @Nonnegative
    public static int getHSLPercentageValue (final int nHSLPart)
    {
      return nHSLPart < PERCENTAGE_MIN ? PERCENTAGE_MIN : nHSLPart > PERCENTAGE_MAX ? PERCENTAGE_MAX : nHSLPart;
    }
docs: Get the passed value as a valid HSL Saturation or Lightness value in the
  range of {@value #PERCENTAGE_MIN}-{@value #PERCENTAGE_MAX} (percentage).
  
  @param nHSLPart
  Source value
  @return Target value in the range of {@value #PERCENTAGE_MIN}-
  {@value #PERCENTAGE_MAX}