.stream()
                                .map(doc -> {
                                    final String id = DocumentUtil.getValue(doc, fessConfig.getIndexFieldId(), String.class);
                                    final String docId = DocumentUtil.getValue(doc, fessConfig.getIndexFieldDocId(), String.class);
                                    if (id != null && docId != null && clickCountMap.containsKey(docId)) {

            if (paramMap != null) {
                for (Map.Entry<String, Object> entry : paramMap.entrySet()) {
                    String key = entry.getKey();
                    Object value = entry.getValue();

                    // Handle nested properties
                    if (key.contains(".")) {
                        // Simple nested property handling for testing

        final Comparator<Map.Entry<String, String>> c = Comparator.comparing(Map.Entry::getKey);
        params.entrySet().stream().sorted(c).forEach(e -> {
            valueMap.put(e.getKey(), e.getValue().replace('\t', '_'));
        });
        log(valueMap);
    }

    /**
     * Log the value map.
     * @param valueMap The value map.
     */

                if (!pvno.getValue().equals(new BigInteger(KerberosConstants.KERBEROS_VERSION))) {
                    throw new PACDecodingException("Invalid kerberos version");
                }
                break;
            case 1:
                ASN1Integer msgType = ASN1Util.as(ASN1Integer.class, tagged);
                if (!msgType.getValue().equals(new BigInteger(KerberosConstants.KERBEROS_AP_REQ))) {

            if (matcher == null) {
                getLog().debug("Toolchain {} is missing required property: {}", this, key);
                return false;
            }
            if (!matcher.matches(requirement.getValue())) {
                getLog().debug("Toolchain {} doesn't match required property: {}", this, key);
                return false;
            }
        }
        return true;
    }

    for (K key : sampleKeys()) {
      List<V> expectedValues = new ArrayList<>();
      for (Entry<K, V> entry : getSampleElements()) {
        if (entry.getKey().equals(key)) {
          expectedValues.add(entry.getValue());
        }
      }

      Collection<V> collection = multimap().asMap().get(key);
      if (expectedValues.isEmpty()) {
        assertNull(collection);
      } else {

    for (K key : sampleKeys()) {
      List<V> expectedValues = new ArrayList<>();
      for (Entry<K, V> entry : getSampleElements()) {
        if (entry.getKey().equals(key)) {
          expectedValues.add(entry.getValue());
        }
      }

      Collection<V> collection = multimap().asMap().get(key);
      if (expectedValues.isEmpty()) {
        assertNull(collection);
      } else {

        final Map<String, Object> docMap = new HashMap<>(32);
        if (searchHit.getSourceAsMap() == null) {
            searchHit.getFields().forEach((key, value) -> {
                docMap.put(key, value.getValue());
            });
        } else {
            docMap.putAll(searchHit.getSourceAsMap());
        }

        final ViewHelper viewHelper = ComponentUtil.getViewHelper();

    stream.writeInt(multimap.asMap().size());
    for (Map.Entry<K, Collection<V>> entry : multimap.asMap().entrySet()) {
      stream.writeObject(entry.getKey());
      stream.writeInt(entry.getValue().size());
      for (V value : entry.getValue()) {
        stream.writeObject(value);
      }
    }
  }

  /**
   * Populates a multimap by reading an input stream, as part of deserialization. See {@link

      for (Object element : elements) {
        @SuppressWarnings("unchecked")
        Entry<String, Integer> entry = (Entry<String, Integer>) element;
        multimap.put(entry.getKey(), entry.getValue());
      }
      return multimap.entries();
    }

    abstract Multimap<String, Integer> createMultimap();

    @Override
    @SuppressWarnings("unchecked")