code: protected synchronized void increment(long now) {
  		pointer++;
  		if (pointer >= timestamps.length) {
  			pointer = 0;
  		}
  		timestamps[pointer] = now;
  		max = now;
  
  		int next = pointer + 1;
  		if (next >= timestamps.length) {
  			next = 0;
  		}
  		min = timestamps[next];
  	}
docs: --- INCREMENT ERROR COUNTER ---