docs: public static String buildTimeDifference(final long pStartTime, final long pEndTime) {
  
      //return pEndTime - pStartTime;
      StringBuilder retVal = new StringBuilder();
  
      // The time difference in milliseconds
      long timeDifference = pEndTime - pStartTime;
  
      if (timeDifference < 1000) {
        retVal.append(timeDifference);
        retVal.append(" ms");
      } else {
        long seconds = timeDifference / 1000;
  
        timeDifference = timeDifference % 1000;
        retVal.append(seconds);
        retVal.append("s ");
        retVal.append(timeDifference);
        retVal.append("ms");
      }
  
      //return retVal.toString() + "   (original timeDifference: " + new String(new Long(pEndTime - pStartTime).toString()) + ")";
      return retVal.toString();
    }