//     <url>http://repository.sonatype.org/content/groups/public</url>
        //   </mirror>
        // </mirrors>

        for (Mirror mirror : settings.getMirrors()) {
            request.addMirror(mirror);
        }

        for (Repository remoteRepository : settings.getRepositories()) {
            try {

        Settings settings = new Settings();
        Mirror mirror = new Mirror();
        mirror.setId("local");
        settings.addMirror(mirror);
        mirror = new Mirror();
        mirror.setId("illegal\\:/chars");
        mirror.setUrl("http://void");
        mirror.setMirrorOf("void");
        settings.addMirror(mirror);

        SimpleProblemCollector problems = new SimpleProblemCollector();
        validator.validate(settings, problems);

        //   </mirror>
        // </mirrors>

        for (Mirror mirror : settings.getMirrors()) {
            mirror = mirror.clone();

            request.addMirror(mirror);
        }

        request.setActiveProfiles(settings.getActiveProfiles());

        for (org.apache.maven.settings.Profile rawProfile : settings.getProfiles()) {

    MavenExecutionRequest addServer(Server server);

    // Mirrors
    List<Mirror> getMirrors();

    MavenExecutionRequest setMirrors(List<Mirror> mirrors);

    MavenExecutionRequest addMirror(Mirror mirror);

    // Plugin groups
    List<String> getPluginGroups();

    MavenExecutionRequest setPluginGroups(List<String> pluginGroups);

    MavenExecutionRequest addPluginGroup(String pluginGroup);

            this.mirrors = new ArrayList<>(mirrors);
        } else {
            this.mirrors = null;
        }

        return this;
    }

    @Override
    public MavenExecutionRequest addMirror(Mirror mirror) {
        Objects.requireNonNull(mirror, "mirror cannot be null");

        for (Mirror p : getMirrors()) {
            if (p.getId() != null && p.getId().equals(mirror.getId())) {

        //     <url>http://repository.sonatype.org/content/groups/public</url>
        //   </mirror>
        // </mirrors>

        for (Mirror mirror : settings.getMirrors()) {
            request.addMirror(new org.apache.maven.settings.Mirror(mirror));
        }

        // Collect repositories; are sensitive to ordering
        LinkedHashMap<String, Repository> remoteRepositories = new LinkedHashMap<>();

    public boolean hasErrorArtifactExceptions() {
        return errorArtifactExceptions != null;
    }

    public MetadataResolutionResult addError(Exception e) {
        exceptions = initList(exceptions);

        exceptions.add(e);

        return this;
    }

    public List<ArtifactResolutionException> getErrorArtifactExceptions() {

                logger.error("IndexUpdater is terminated.", t);
                org.codelibs.fess.exec.Crawler.addError(t.getClass().getSimpleName());
            } else if (logger.isInfoEnabled()) {
                logger.info("IndexUpdater is terminated.");
                org.codelibs.fess.exec.Crawler.addError(t.getClass().getSimpleName());
            }
            forceStop();
        } finally {

     * This method is thread-safe and can be called from multiple crawler threads.
     *
     * @param msg the error message to add; ignored if null or blank
     */
    public static void addError(final String msg) {
        if (StringUtil.isNotBlank(msg)) {
            errors.offer(msg);
        }
    }

    /**
     * Command-line options container for the crawler application.