docs: int getLongestChainLength() {
  		int maxLen = 0;
  
  		for (Entry<?, ?> entry : table) {
  			int thisLen = 0;
  			while (entry != null) {
  				thisLen++;
  				entry = entry.next;
  			}
  			maxLen = Math.max(maxLen, thisLen);
  		}
  
  		return maxLen;
  	}