return 0;
      }
    }

    /**
     * {@inheritDoc}
     *
     * <p>If the data in the multiset is modified by any other threads during this method, it is
     * undefined which (if any) of these modifications will be reflected in the result.
     */
    @Override
    public int size() {
      long sum = 0L;
      for (Integer value : countMap.values()) {
        sum += value;

        return 0;
      }
    }

    /**
     * {@inheritDoc}
     *
     * <p>If the data in the multiset is modified by any other threads during this method, it is
     * undefined which (if any) of these modifications will be reflected in the result.
     */
    @Override
    public int size() {
      long sum = 0L;
      for (Integer value : countMap.values()) {
        sum += value;