code: public long getMax() {
  		int lastBin = hits.length() - 1;
  		if (hits.get(lastBin) > 0) {
  			return Long.MAX_VALUE;
  		}
  
  		for (int i = lastBin - 1; i >= 0; i--) {
  			if (hits.get(i) > 0) {
  				return bins[i];
  			}
  		}
  		return 0;
  	}
docs: The end-point of interval that contains the largest value added to this
  histogram. If the histogram overflowed, returns Long.MAX_VALUE.