*
     * @return The system properties, never {@code null}.
     */
    public Properties getSystemProperties() {
        return request.getSystemProperties();
    }

    public Settings getSettings() {
        return settings;
    }

    public List<MavenProject> getProjects() {
        return projects;
    }

    /**
     * @deprecated use {@link #getTopDirectory()} ()}
     */

                empty = true;
                final CreateIndexResponse response = client.admin()
                        .indices()
                        .prepareCreate(actualIndex)
                        .setSettings(loadIndexSettings(), XContentType.JSON)
                        .execute()
                        .actionGet(settings.getIndicesTimeout());
                if (!response.isAcknowledged()) {

                .flatMap(p -> p.getModel().getDelegate().getProfiles().stream())
                .map(Profile::getId);
        final Stream<String> settingsProfiles =
                session.getSettings().getProfiles().stream().map(org.apache.maven.settings.Profile::getId);
        final Stream<String> superPomProfiles = superPomModels.values().stream()
                .flatMap(p -> p.getProfiles().stream())

    taskRunner.newQueue().execute(name = connectionName, block = readerRunnable)
  }

  /** Merges [settings] into this peer's settings and sends them to the remote peer. */
  @Throws(IOException::class)
  fun setSettings(settings: Settings) {
    writer.withLock {
      withLock {
        if (isShutdown) {
          throw ConnectionShutdownException()
        }
        okHttpSettings.merge(settings)
      }

    private fun writeResponse(
      stream: Http2Stream,
      request: RecordedRequest,
      response: MockResponse,
    ) {
      val settings = response.settings
      stream.connection.setSettings(settings)

      val bodyDelayNanos = response.bodyDelayNanos
      val trailers = response.trailers
      val body = response.body
      val socketHandler = response.socketHandler
      val outFinished = (

     */
    @Nonnull
    Version getMavenVersion();

    /**
     * Retrieves the settings for the current session.
     *
     * @return the settings instance
     */
    @Nonnull
    Settings getSettings();

    /**
     * Retrieves toolchain models that have been explicitly configured.
     *
     * @return the toolchain models
     */
    @Nonnull
    Collection<ToolchainModel> getToolchains();

    }

    /**
     * Sets the configuration settings for the search engine.
     *
     * @param settings map of configuration key-value pairs
     */
    public void setSettings(final Map<String, String> settings) {
        this.settings = settings;
    }

    /**
     * Gets the current cluster health status.
     *
     * @return the cluster health status name
     */