docs: @SuppressWarnings("unchecked")
      private void readObject(java.io.ObjectInputStream s) throws IOException, ClassNotFoundException {
          s.defaultReadObject();
  
          // Initialize each segment to be minimally sized, and let grow.
          for (int i = 0; i < segments.length; ++i) {
              segments[i].setTable(new HashEntry[1]);
          }
  
          // Read the keys and values, and put the mappings in the table
          while (true) {
              K key = (K) s.readObject();
              V value = (V) s.readObject();
              if (key == null) {
                  break;
              }
              put(key, value);
          }
      }