}
        }

        List<Server> servers = settings.getServers();

        if (servers != null) {
            Set<String> serverIds = new HashSet<>();

            for (int i = 0; i < servers.size(); i++) {
                Server server = servers.get(i);

                validateStringNotEmpty(problems, "servers.server[" + i + "].id", server.getId(), null);

        return this;
    }

    public ArtifactResolutionRequest setServers(List<Server> servers) {
        this.servers = servers;

        return this;
    }

    public List<Server> getServers() {
        if (servers == null) {
            servers = new ArrayList<>();
        }

        return servers;
    }

    public ArtifactResolutionRequest setMirrors(List<Mirror> mirrors) {

        if (repositories != null) {
            Map<String, Server> serversById = new HashMap<>();

            if (servers != null) {
                for (Server server : servers) {
                    if (!serversById.containsKey(server.getId())) {
                        serversById.put(server.getId(), server);
                    }
                }

                List<Server> servers = request.getServers();

                if (servers != null) {
                    for (Server server : servers) {
                        if (id.equalsIgnoreCase(server.getId())) {
                            SettingsDecryptionResult result =
                                    settingsDecrypter.decrypt(new DefaultSettingsDecryptionRequest(server));

     *
     * @param repositories The repositories into which to inject the authentication information, may be {@code null}.
     * @param servers The available servers, may be {@code null}.
     */
    void injectAuthentication(List<ArtifactRepository> repositories, List<Server> servers);

    void injectMirror(RepositorySystemSession session, List<ArtifactRepository> repositories);

    @Test
    void testValidateUniqueServerId() throws Exception {
        Settings settings = new Settings();
        Server server1 = new Server();
        server1.setId("test");
        settings.addServer(server1);
        Server server2 = new Server();
        server2.setId("test");
        settings.addServer(server2);

        SimpleProblemCollector problems = new SimpleProblemCollector();

    }

    @Override
    public List<Server> getServers() {
        if (servers == null) {
            servers = new ArrayList<>();
        }
        return servers;
    }

    @Override
    public MavenExecutionRequest setServers(List<Server> servers) {
        if (servers != null) {
            this.servers = new ArrayList<>(servers);
        } else {
            this.servers = null;

                    .offline(false)
                    .proxies(List.of())
                    .usePluginRegistry(false)
                    .servers(settings.getServers().stream()
                            .map(s -> Server.newBuilder(s, true)
                                    .username(null)
                                    .passphrase(null)
                                    .privateKey(null)

    }

    public Mirror getMirror(ArtifactRepository repository, List<Mirror> mirrors) {
        return null;
    }

    public void injectAuthentication(List<ArtifactRepository> repositories, List<Server> servers) {}

    public void injectMirror(List<ArtifactRepository> repositories, List<Mirror> mirrors) {}

    public void injectProxy(List<ArtifactRepository> repositories, List<Proxy> proxies) {}

                .get(ConfigurationProperties.CONNECT_TIMEOUT + "." + server.getId());
        assertEquals(3000, connectionTimeout);
    }

    @Test
    void connectionTimeoutFromHttpConfigurationTest() throws InvalidRepositoryException {
        Server server = new Server();
        server.setId("repository");
        server.setUsername("jason");
        server.setPassword("abc123");