return null;
    }

    private ArtifactResolutionResult collect(Set<Artifact> artifacts) throws ArtifactResolutionException {
        return collect(artifacts, null);
    }

    private ArtifactResolutionResult collect(Set<Artifact> artifacts, ArtifactFilter filter)
            throws ArtifactResolutionException {
        return artifactCollector.collect(

        List<Version> authoritativeReleasedVersions = Stream.of("7.0.0", "7.0.1", "7.1.0")
            .map(Version::fromString)
            .collect(Collectors.toList());

        BwcVersions vc = new BwcVersions(
            listOfVersions.stream().map(this::formatVersionToLine).collect(Collectors.toList()),
            Version.fromString("8.0.0")
        );
        vc.compareToAuthoritative(authoritativeReleasedVersions);
    }

                            .distinct()
                            .collect(Collectors.joining("\n")));
                    form.virtualHosts = stream(entity.getVirtualHosts())
                            .get(stream -> stream.filter(StringUtil::isNotBlank).map(String::trim).collect(Collectors.joining("\n")));
                    form.name = null;
                });

            Map<String, Node> nodes = node.stream()
                    .collect(Collectors.toMap(n -> getDependencyKey(n.getDependency()), Function.identity()));
            Map<String, Dependency> directDependencies = model.getDependencies().stream()
                    .filter(dependency -> !"import".equals(dependency.getScope()))
                    .collect(Collectors.toMap(
                            DefaultConsumerPomBuilder::getDependencyKey,

                    .collect(Collectors.joining(","));
            buf.append('[').append(json).append(']');
        } else if (value instanceof List) {
            final String json = ((List<?>) value).stream()
                    .map(s -> "\"" + StringEscapeUtils.escapeJson(s.toString()) + "\"")
                    .collect(Collectors.joining(","));

                .collect(Collectors.toList());
        return new Dependency(result, artifact.getScope(), artifact.isOptional(), excl);
    }

    public static List<RemoteRepository> toRepos(List<ArtifactRepository> repos) {
        return Optional.ofNullable(repos).orElse(Collections.emptyList()).stream()
                .map(RepositoryUtils::toRepo)
                .collect(Collectors.toList());
    }

        injectSession(request);
        return collect(
                artifacts, originatingArtifact, managedVersions, request, source, filter, listeners, conflictResolvers);
    }

    @Override
    @SuppressWarnings("checkstyle:parameternumber")
    public ArtifactResolutionResult collect(
            Set<Artifact> artifacts,
            Artifact originatingArtifact,

        filesByVersion.forEach((version, files) -> {
            Set<ChangelogEntry> entriesForVersion = files.stream().map(ChangelogEntry::parse).collect(toSet());
            entries.addAll(entriesForVersion);
            changelogsByVersion.put(version, entriesForVersion);
        });

                        if (!errors.isEmpty()) {
                            logger.warn("{}", errors.stream().collect(Collectors.joining(", ")));
                            if (auth.isDebugActive() && StringUtil.isNotBlank(auth.getLastErrorReason())) {
                                logger.warn("Authentication Failure: {} - Reason: {}", errors.stream().collect(Collectors.joining(", ")),
                                        auth.getLastErrorReason());

        request.getProjectBuildingRequest().setRepositorySession(session.getRepositorySession());

        // 1. Collect project for invocation without a POM.
        if (request.getPom() == null) {
            return pomlessCollectionStrategy.collectProjects(request);
        }

        // 2. Collect projects for all modules in the multi-module project.