assertEquals(0, stats.hitCount());

    assertEquals(ImmutableMap.of(), cache.getAll(ImmutableList.<Integer>of()));
    assertEquals(0, stats.missCount());
    assertEquals(0, stats.loadSuccessCount());
    assertEquals(0, stats.loadExceptionCount());
    assertEquals(0, stats.hitCount());

    assertEquals(ImmutableMap.of(1, 1), cache.getAll(asList(1)));
    stats = cache.stats();
    assertEquals(1, stats.missCount());

  }

  /**
   * Computes or retrieves the values corresponding to {@code keys}. This method is called by {@link
   * LoadingCache#getAll}.
   *
   * <p>If the returned map doesn't contain all requested {@code keys} then the entries it does
   * contain will be cached, but {@code getAll} will throw an exception. If the returned map
   * contains extra keys not present in {@code keys} then all returned entries will be cached, but

      }
    }

    @Override
    public final V apply(K key) {
      return getUnchecked(key);
    }

    @Override
    public ImmutableMap<K, V> getAll(Iterable<? extends K> keys) throws ExecutionException {
      Map<K, V> map = new HashMap<K, V>();
      for (K key : keys) {
        map.put(key, localCache.getOrLoad(key));
      }

        // Test that multiple calls to getUrl() return the same value
        String url = "http://example.com/test";
        String message = "Test message";
        Exception cause = new RuntimeException("Test cause");

        DataStoreCrawlingException exception = new DataStoreCrawlingException(url, message, cause);

        // Call getUrl() multiple times
        assertEquals(url, exception.getUrl());

                && isValidCanonicalUrl(responseData.getUrl(), canonicalUrl)) {
            final Set<RequestData> childUrlSet = new HashSet<>();
            childUrlSet.add(RequestDataBuilder.newRequestData().get().url(canonicalUrl).build());
            logger.info("CANONICAL: {} -> {}", responseData.getUrl(), canonicalUrl);

        return getCell(index);
      }
    };
  }

  @Override
  Spliterator<Cell<R, C, @Nullable V>> cellSpliterator() {
    return CollectSpliterators.<Cell<R, C, @Nullable V>>indexed(
        size(), Spliterator.ORDERED | Spliterator.NONNULL | Spliterator.DISTINCT, this::getCell);
  }

  private Cell<R, C, @Nullable V> getCell(int index) {

                    }
                    break;
                default:
                    logger.error("Unknown thumbnail result: {} -> {}", thumbnailId, responseData.getUrl());
                    break;
                }
            } catch (final Throwable t) {
                logger.warn("Failed to create thumbnail: {} -> {} ({}:{})", thumbnailId, responseData.getUrl(),

                    appendJson("user-info-id", entity.getUserInfoId(), buf).append(',');
                    appendJson("doc-id", entity.getDocId(), buf).append(',');
                    appendJson("url", entity.getUrl(), buf);
                    buf.append('}');
                    buf.append('\n');
                    try {
                        writer.write(buf.toString());
                    } catch (final IOException e) {

                    if (logger.isDebugEnabled()) {
                        logger.debug("Skipping crawl request for url='{}' at depth={} (maxDepth={}, alreadyProcessed={})",
                                crawlRequest.getUrl(), crawlRequest.getDepth(), maxDepth, processedUrls.contains(crawlRequest.getUrl()));
                    }
                    continue;

                    }
                }

            });
        } catch (final Exception e) {
            final CrawlingAccessException rcae = new CrawlingAccessException("Could not get a text from " + responseData.getUrl(), e);
            rcae.setLogLevel(CrawlingAccessException.WARN);
            throw rcae;
        }
        if (content == null) {
            content = StringUtil.EMPTY;
        }