*
   * @since 8.0
   */
  public static final byte DLE = 16;

  /**
   * Device Control 1. Characters for the control of ancillary devices associated with data
   * processing or telecommunication systems, more especially switching devices "on" or "off." (If a
   * single "stop" control is required to interrupt or turn off ancillary devices, DC4 is the
   * preferred assignment.)
   *
   * @since 8.0
   */

   * href="https://iabtechlab.com/wp-content/uploads/2019/06/VAST_4.2_final_june26.pdf">{@code
   * X-Device-IP}</a> header field name. Header used for VAST requests to provide the IP address of
   * the device on whose behalf the request is being made.
   *
   * @since 31.0
   */
  public static final String X_DEVICE_IP = "X-Device-IP";
  /**
   * The HTTP <a

    public static final int NT_STATUS_INVALID_HANDLE = 0xC0000008;
    public static final int NT_STATUS_INVALID_PARAMETER = 0xC000000d;
    public static final int NT_STATUS_NO_SUCH_DEVICE = 0xC000000e;
    public static final int NT_STATUS_NO_SUCH_FILE = 0xC000000f;
    public static final int NT_STATUS_END_OF_FILE = 0xC0000011;
    public static final int NT_STATUS_MORE_PROCESSING_REQUIRED = 0xC0000016;

    public static final int NT_STATUS_INVALID_HANDLE = 0xC0000008;
    public static final int NT_STATUS_INVALID_PARAMETER = 0xC000000d;
    public static final int NT_STATUS_NO_SUCH_DEVICE = 0xC000000e;
    public static final int NT_STATUS_NO_SUCH_FILE = 0xC000000f;
    public static final int NT_STATUS_MORE_PROCESSING_REQUIRED = 0xC0000016;
    public static final int NT_STATUS_ACCESS_DENIED = 0xC0000022;

   *
   * @since 8.0
   */
  public static final byte DLE = 16;

  /**
   * Device Control 1. Characters for the control of ancillary devices associated with data
   * processing or telecommunication systems, more especially switching devices "on" or "off." (If a
   * single "stop" control is required to interrupt or turn off ancillary devices, DC4 is the
   * preferred assignment.)
   *
   * @since 8.0
   */

  }

  private static void assertState(
      ServiceManager manager, Service.State state, Service... services) {
    Collection<Service> managerServices = manager.servicesByState().get(state);
    for (Service service : services) {
      assertEquals(service.toString(), state, service.state());

   * @since 15.0
   */
  @CanIgnoreReturnValue
  Service startAsync();

  /** Returns {@code true} if this service is {@linkplain State#RUNNING running}. */
  boolean isRunning();

  /** Returns the lifecycle state of the service. */
  State state();

  /**
   * If the service is {@linkplain State#STARTING starting} or {@linkplain State#RUNNING running},

    }


    /**
     * Set the service name which is used to setup <code>GSSContext</code>.
     * Program will use this name to require service ticket from KDC.
     *
     * @param name
     *            the service name used to require service ticket from KDC.
     */
    public void setService ( String name ) {
        this.service = name;
    }


    /**
     * Get the service name.

  }

  /**
   * Add a shutdown hook to wait for thread completion in the given {@link ExecutorService service}.
   * This is useful if the given service uses daemon threads, and we want to keep the JVM from
   * exiting immediately on shutdown, instead giving these daemon threads a chance to terminate
   * normally.
   *
   * @param service ExecutorService which uses daemon threads

        activityHelper.login(OptionalThing.empty());
        assertEquals(
                "{\"@timestamp\":\"2022-01-01T00:00:00.000Z\",\"log.level\":\"INFO\",\"ecs.version\":\"1.2.0\",\"service.name\":\"fess\",\"event.dataset\":\"app\",\"process.thread.name\":\"main\",\"log.logger\":\"org.codelibs.fess.helper.ActivityHelperTest$1\",\"labels.action\":\"LOGIN\",\"labels.user\":\"-\",\"labels.permissions\":\"-\"}",