docs: private void putResize (K key, int value) {
  		// Check for empty buckets.
  		int hashCode = key.hashCode();
  		int index1 = hashCode & mask;
  		K key1 = keyTable[index1];
  		if (key1 == null) {
  			keyTable[index1] = key;
  			valueTable[index1] = value;
  			if (size++ >= threshold) resize(capacity << 1);
  			return;
  		}
  
  		int index2 = hash2(hashCode);
  		K key2 = keyTable[index2];
  		if (key2 == null) {
  			keyTable[index2] = key;
  			valueTable[index2] = value;
  			if (size++ >= threshold) resize(capacity << 1);
  			return;
  		}
  
  		int index3 = hash3(hashCode);
  		K key3 = keyTable[index3];
  		if (key3 == null) {
  			keyTable[index3] = key;
  			valueTable[index3] = value;
  			if (size++ >= threshold) resize(capacity << 1);
  			return;
  		}
  
  		push(key, value, index1, key1, index2, key2, index3, key3);
  	}