}

    public List<AbstractAggregationBuilder<?>> getAggregationBuilderList() {
        return aggregationAggregationBuilderList != null ? aggregationAggregationBuilderList : Collections.emptyList();
    }

    // ===================================================================================
    //                                                                         Aggregation

                return wordList;
            });
        } catch (final ExecutionException e) {
            logger.warn("Failed to load popular words.", e);
        }
        return Collections.emptyList();
    }

    /**
     * Clears all cached popular word lists.
     */
    public void clearCache() {
        cache.invalidateAll();
    }

    /**

    public List<CrawlingInfoParam> getLastCrawlingInfoParamList(final String sessionId) {
        final CrawlingInfo crawlingInfo = getLast(sessionId);
        if (crawlingInfo == null) {
            return Collections.emptyList();
        }
        final FessConfig fessConfig = ComponentUtil.getFessConfig();
        return crawlingInfoParamBhv.selectList(cb -> {
            cb.query().setCrawlingInfoId_Equal(crawlingInfo.getId());

        private String type;
        private String coordinateString;
        private String scope;
        private boolean optional;
        private Collection<Exclusion> exclusions = Collections.emptyList();

        DependencyCoordinatesFactoryRequestBuilder() {}

        public DependencyCoordinatesFactoryRequestBuilder session(Session session) {
            this.session = session;
            return this;

    }

    public List<AbstractAggregationBuilder<?>> getAggregationBuilderList() {
        return aggregationAggregationBuilderList != null ? aggregationAggregationBuilderList : Collections.emptyList();
    }

    // ===================================================================================
    //                                                                         Aggregation

    public static List<UpgradedProperty> parse(String path) {
        File file = new File(path);
        if (!file.exists()) {
            return Collections.emptyList();
        }
        try (FileReader reader = new FileReader(file)) {
            List<UpgradedProperty> upgradedProperties = new Gson().fromJson(reader, new TypeToken<List<UpgradedProperty>>() {}.getType());

        MavenSession ms = new MavenSession(rss, mer, meres);
        DefaultSession session = new DefaultSession(
                ms,
                repositorySystem,
                Collections.emptyList(),
                mavenRepositorySystem,
                new DefaultLookup(plexusContainer),
                runtimeInformation);
        org.apache.maven.api.RemoteRepository remoteRepository = session.getRemoteRepository(

   * @return a list view of the array
   */
  public static List<Boolean> asList(boolean... backingArray) {
    if (backingArray.length == 0) {
      return Collections.emptyList();
    }
    return new BooleanArrayAsList(backingArray);
  }

  private static final class BooleanArrayAsList extends AbstractList<Boolean>
      implements RandomAccess, Serializable {

  }

  // `primitives` can't depend on `collect`, so this is what the prod code has to return.
  @SuppressWarnings("EmptyList")
  public void testAsListEmpty() {
    assertThat(Chars.asList(EMPTY)).isSameInstanceAs(Collections.emptyList());
  }

  @J2ktIncompatible
  @GwtIncompatible // NullPointerTester
  public void testNulls() {

   * @return a list view of the array
   */
  public static List<Boolean> asList(boolean... backingArray) {
    if (backingArray.length == 0) {
      return Collections.emptyList();
    }
    return new BooleanArrayAsList(backingArray);
  }

  private static final class BooleanArrayAsList extends AbstractList<Boolean>
      implements RandomAccess, Serializable {