int newCount = this.count - 1;
                ++modCount;
                E newFirst = removeFromChain(first, e);
                newCount = this.count - 1;
                table.set(index, newFirst);
                this.count = newCount; // write-volatile
              }
              return null;
            }

            ++modCount;
            setValue(e, newValue);

            final SearchLogHelper searchLogHelper = ComponentUtil.getSearchLogHelper();
            final int count = searchLogHelper.getClickCount(url);
            doc.put(fessConfig.getIndexFieldClickCount(), count);
            if (logger.isDebugEnabled()) {
                logger.debug("Click Count: {}, url: {}", count, url);
            }
        }
    }

  public long hitCount() {
    return hitCount;
  }

  /**
   * Returns the ratio of cache requests which were hits. This is defined as {@code hitCount /
   * requestCount}, or {@code 1.0} when {@code requestCount == 0}. Note that {@code hitRate +
   * missRate =~ 1.0}.
   */
  public double hitRate() {
    long requestCount = requestCount();
    return (requestCount == 0) ? 1.0 : (double) hitCount / requestCount;
  }

  public long hitCount() {
    return hitCount;
  }

  /**
   * Returns the ratio of cache requests which were hits. This is defined as {@code hitCount /
   * requestCount}, or {@code 1.0} when {@code requestCount == 0}. Note that {@code hitRate +
   * missRate =~ 1.0}.
   */
  public double hitRate() {
    long requestCount = requestCount();
    return (requestCount == 0) ? 1.0 : (double) hitCount / requestCount;
  }

   * desired count.
   *
   * @param element the element to add or remove occurrences of; may be null only if explicitly
   *     allowed by the implementation
   * @param count the desired count of the element in this multiset
   * @return the count of the element before the operation; possibly zero
   * @throws IllegalArgumentException if {@code count} is negative

 * A mutable value of type {@code int}, for multisets to use in tracking counts of values.
 *
 * @author Louis Wasserman
 */
@GwtCompatible
@ElementTypesAreNonnullByDefault
final class Count implements Serializable {
  private int value;

  Count(int value) {
    this.value = value;
  }

  public int get() {
    return value;
  }

  public void add(int delta) {
    value += delta;
  }

          @Override
          public int getCount() {
            Count count = mapEntry.getValue();
            if (count == null || count.get() == 0) {
              Count frequency = backingMap.get(getElement());
              if (frequency != null) {
                return frequency.get();
              }
            }
            return (count == null) ? 0 : count.get();
          }
        };
      }

    assertThat(twoValuesAccumulator.count()).isEqualTo(2);
    assertThat(twoValuesAccumulatorByAddAllPartitionedPairedStats.count()).isEqualTo(2);
    assertThat(manyValuesAccumulator.count()).isEqualTo(MANY_VALUES_COUNT);
    assertThat(manyValuesAccumulatorByAddAllPartitionedPairedStats.count())
        .isEqualTo(MANY_VALUES_COUNT);
  }

  public void testCountOverflow_doesNotThrow() {

    assertThat(twoValuesAccumulator.count()).isEqualTo(2);
    assertThat(twoValuesAccumulatorByAddAllPartitionedPairedStats.count()).isEqualTo(2);
    assertThat(manyValuesAccumulator.count()).isEqualTo(MANY_VALUES_COUNT);
    assertThat(manyValuesAccumulatorByAddAllPartitionedPairedStats.count())
        .isEqualTo(MANY_VALUES_COUNT);
  }

  public void testCountOverflow_doesNotThrow() {

        }
    }

    public void setUrlId_Count() {
        setUrlId_Count(null);
    }

    public void setUrlId_Count(ConditionOptionCall<ValueCountAggregationBuilder> opLambda) {
        setUrlId_Count("urlId", opLambda);
    }

    public void setUrlId_Count(String name, ConditionOptionCall<ValueCountAggregationBuilder> opLambda) {