*/
        V rightValue = uncheckedCastNullableTToT(onlyOnRight.remove(leftKey));
        if (valueEquivalence.equivalent(leftValue, rightValue)) {
          onBoth.put(leftKey, leftValue);
        } else {
          differences.put(leftKey, ValueDifferenceImpl.create(leftValue, rightValue));
        }
      } else {
        onlyOnLeft.put(leftKey, leftValue);
      }
    }
  }

         */
        V rightValue = uncheckedCastNullableTToT(onlyOnRight.remove(leftKey));
        if (valueEquivalence.equivalent(leftValue, rightValue)) {
          onBoth.put(leftKey, leftValue);
        } else {
          differences.put(leftKey, ValueDifferenceImpl.create(leftValue, rightValue));
        }
      } else {
        onlyOnLeft.put(leftKey, leftValue);
      }
    }
  }

      if (value == null) {
        misses++;
      } else {
        // TODO(fry): store entry key instead of query key
        @SuppressWarnings("unchecked")
        K castKey = (K) key;
        result.put(castKey, value);
        hits++;
      }
    }
    globalStatsCounter.recordHits(hits);
    globalStatsCounter.recordMisses(misses);
    return result.buildKeepingLast();
  }

      if (value == null) {
        misses++;
      } else {
        // TODO(fry): store entry key instead of query key
        @SuppressWarnings("unchecked")
        K castKey = (K) key;
        result.put(castKey, value);
        hits++;
      }
    }
    globalStatsCounter.recordHits(hits);
    globalStatsCounter.recordMisses(misses);
    return result.buildKeepingLast();
  }