* java.util.stream.Stream#filter}. This method is not being deprecated, but we gently encourage
   * you to migrate to streams.
   */
  // TODO(kevinb): how to omit that last sentence when building GWT javadoc?
  public static <E extends @Nullable Object> Set<E> filter(
      Set<E> unfiltered, Predicate<? super E> predicate) {
    if (unfiltered instanceof SortedSet) {
      return filter((SortedSet<E>) unfiltered, predicate);

        if (crawlerContext.getMaxDepth() >= 0 && depth > crawlerContext.getMaxDepth()) {
            return;
        }

        // add url and filter
        final Set<String> urlSet = new HashSet<>();
        final List<UrlQueue<?>> childList = childUrlList.stream()
                .filter(d -> StringUtil.isNotBlank(d.getUrl()) && urlSet.add(d.getUrl()) && crawlerContext.urlFilter.match(d.getUrl()))
                .map(d -> {

        ArtifactFilter filter;

        if ( ! exclusions.isEmpty() )
        {
            filter = new AndArtifactFilter( Arrays.asList( new ArtifactFilter[]{
                new ExcludesArtifactFilter( exclusions ), scopeFilter } ) );
        }
        else
        {
            filter = scopeFilter;
        }
        */

        List<BuildStep> lasts =
                org.values().stream().filter(b -> b.successors.isEmpty()).toList();
        List<BuildStep> firsts =
                add.values().stream().filter(b -> b.predecessors.isEmpty()).toList();
        firsts.stream()
                .filter(addNode -> !org.containsKey(addNode.name))

                        && Objects.equals(localRepo, that.localRepo)
                        && RepositoryUtils.repositoriesEquals(this.repositories, that.repositories)
                        && Objects.equals(filter, that.filter)
                        && Objects.equals(foreignImports, that.foreignImports);
            } else {
                return false;
            }
        }
    }

        context.info("Maven Upgrade Tool");
        logUpgradeOptions(context);

        UpgradeResult overallResult = UpgradeResult.empty();

        // Filter and execute applicable strategies
        List<UpgradeStrategy> applicableStrategies = strategies.stream()
                .filter(strategy -> strategy.isApplicable(context))
                .toList();

        if (applicableStrategies.isEmpty()) {

            String selector = request.getResumeFrom();

            MavenProject resumingFromProject = projects.stream()
                    .filter(project -> projectSelector.isMatchingProject(project, selector, reactorDirectory))
                    .findFirst()
                    .orElseThrow(() -> new MavenExecutionException(

        return false;
    }

    /**
     * Processes a scroll search request.
     * @param request The HTTP request.
     * @param response The HTTP response.
     * @param chain The filter chain.
     */
    protected void processScrollSearchRequest(final HttpServletRequest request, final HttpServletResponse response,
            final FilterChain chain) {
        if (!acceptHttpMethod(request, GET)) {

   * <p><b>{@code Stream} equivalent:</b> {@link Stream#filter} (same).
   */
  public final FluentIterable<E> filter(Predicate<? super E> predicate) {
    return from(Iterables.filter(getDelegate(), predicate));
  }

  /**
   * Returns the elements from this fluent iterable that are instances of class {@code type}.
   *
   * <p><b>{@code Stream} equivalent:</b> {@code stream.filter(type::isInstance).map(type::cast)}.

   * <p><b>{@code Stream} equivalent:</b> {@link Stream#filter}.
   */
  public static <T extends @Nullable Object> Iterable<T> filter(
      Iterable<T> unfiltered, Predicate<? super T> retainIfTrue) {
    checkNotNull(unfiltered);
    checkNotNull(retainIfTrue);
    return new FluentIterable<T>() {
      @Override
      public Iterator<T> iterator() {
        return Iterators.filter(unfiltered.iterator(), retainIfTrue);
      }