int[] taskDeltas = future.get();
        for (int i = 0; i < deltas.length; i++) {
          deltas[i] += taskDeltas[i];
        }
      }

      List<Integer> actualCounts =
          Lists.transform(
              keys,
              new Function<String, Integer>() {
                @Override
                public Integer apply(String key) {
                  return multiset.count(key);
                }

        int[] taskDeltas = future.get();
        for (int i = 0; i < deltas.length; i++) {
          deltas[i] += taskDeltas[i];
        }
      }

      List<Integer> actualCounts =
          Lists.transform(
              keys,
              new Function<String, Integer>() {
                @Override
                public Integer apply(String key) {
                  return multiset.count(key);
                }