docs: private void callMissedHitHandler(K key) {
  		if (!map.containsKey(key)) {
  			if (missedHitHandler == null) {
  				throw new RuntimeException("No Missed Hit Handler");
  			}
  
  			V v = missedHitHandler.loadForCache(key);
  			if (v != null) {
  				put(key, v);
  			}
  		}
  	}