Map<K, V> map = Maps.newLinkedHashMap();
    for (int i = 0; i < table.length(); i++) {
      for (ReferenceEntry<K, V> entry = table.get(i); entry != null; entry = entry.getNext()) {
        K key = entry.getKey();
        V value = entry.getValueReference().get();
        if (key != null && value != null) {
          assertNull(map.put(key, value));
        }
      }
    }

    Map<K, V> map = Maps.newLinkedHashMap();
    for (int i = 0; i < table.length(); i++) {
      for (ReferenceEntry<K, V> entry = table.get(i); entry != null; entry = entry.getNext()) {
        K key = entry.getKey();
        V value = entry.getValueReference().get();
        if (key != null && value != null) {
          assertNull(map.put(key, value));
        }
      }
    }