docs: public static void printTimeDifference(final long pStartTime, final long pEndTime, final PrintStream pPrintStream) {
  
      if (pPrintStream == null) {
        System.err.println(PRINTSTREAM_IS_NULL_ERROR_MESSAGE);
        return;
      }
      pPrintStream.println(buildTimeDifference(pStartTime, pEndTime));
    }