/** The key of the message: {item} may not be null. */
    public static final String CONSTRAINTS_NotNull_MESSAGE = "{constraints.NotNull.message}";

    /** The key of the message: {item} must be null. */
    public static final String CONSTRAINTS_Null_MESSAGE = "{constraints.Null.message}";

    /** The key of the message: {item} must be in the past. */

    // Empty server to client message.
    val message3 = ""
    server.send(message3)
    clientListener.assertTextMessage(message3)

    // Empty client to server message.
    val message4 = ""
    client.send(message4)
    serverListener.assertTextMessage(message4)

    // Server to client message that shares context with message1.
    val message5 = message1 + message1

  }

  fun assertFailure(
    cls: Class<out IOException?>?,
    vararg messages: String,
  ) {
    val event = nextEvent() as Failure
    assertThat(event.response).isNull()
    assertThat(event.t.javaClass).isEqualTo(cls)
    if (messages.isNotEmpty()) {
      assertThat(messages).contains(event.t.message)
    }
  }

  fun assertFailure() {
    nextEvent() as Failure
  }

        return args;
    }

    @Override
    public String getMessage() {
        return message;
    }

    /**
     * Returns a simple message without a message code.
     *
     * @return simple message without message code
     */
    public final String getSimpleMessage() {
        return simpleMessage;
    }

          // Produced ClientHello handshake message
          // Consuming ServerHello handshake message
          // Consuming server Certificate handshake message
          // Consuming server CertificateStatus handshake message
          // Found trusted certificate
          // Consuming ECDH ServerKeyExchange handshake message
          // Consuming ServerHelloDone handshake message

    /** The key of the message: Status */
    public static final String LABELS_AVAILABLE = "{labels.available}";

    /** The key of the message: Created by */
    public static final String LABELS_CREATED_BY = "{labels.createdBy}";

    /** The key of the message: Created Time */
    public static final String LABELS_CREATED_TIME = "{labels.createdTime}";

    /** The key of the message: Depth */

          message.startsWith("System property ") -> Type.Setup
          message.startsWith("Reload ") -> Type.Setup
          message == "No session to resume." -> Type.Handshake
          message.startsWith("Consuming ") -> Type.Handshake
          message.startsWith("Produced ") -> Type.Handshake
          message.startsWith("Negotiated ") -> Type.Handshake

     * By default, bold blue
     *
     * @param message the message to append
     * @return the current builder
     */
    @Nonnull
    default MessageBuilder info(Object message) {
        return style(".info:-bold,f:blue", message);
    }

    /**
     * Append message content in warning style.
     * By default, bold yellow
     *
     * @param message the message to append

type fatalMsg struct{}

func (f fatalMsg) json(msg string, args ...interface{}) {
	var message string
	if msg != "" {
		message = fmt.Sprintf(msg, args...)
	} else {
		message = fmt.Sprint(args...)
	}
	logJSON, err := json.Marshal(&log.Entry{
		Level:   FatalKind,
		Message: message,
		Time:    time.Now().UTC(),
		Trace:   &log.Trace{Message: message, Source: []string{getSource(6)}},
	})
	if err != nil {
		panic(err)
	}

    public static String getMessage(Exception e) {
        String message = e.getMessage();
        if (e instanceof XMLStreamException xe && xe.getLocation() != null) {
            int idx = message.indexOf("\nMessage: ");
            if (idx >= 0) {
                return message.substring(idx + "\nMessage: ".length());
            }
        }
        return message;
    }

    public StaxLocation(javax.xml.stream.Location location) {