code: private void addStopwatchSplits(Stopwatch stopwatch, int splitWidth) {
  		final int splits = randomInt(splitWidth / 2, splitWidth);
  		try {
  			lock.lock();
  			System.out.print(stopwatch.getName() + " " + splits + ": ");
  			for (int i = 0; i < splits; i++) {
  				System.out.print(addStopwatchSplit(stopwatch) + ",");
  			}
  			System.out.println();
  		} finally {
  			lock.unlock();
  		}
  	}
docs: Generate a Simon of type "Stopwatch" and fill it with some Splits.
  
  @param splitWidth Max number of splits per Stopwatch