String data = JSON_STRING;
String payload = String.format("{ \"data\" : %1s, \"%2s\" : \"/replyEndpoint\"}",
data, AjaxConnector.REPLYTO_PARAM);
MuleMessageFactory factory = createMuleMessageFactory();
MuleMessage message = factory.create(payload, encoding, muleContext);
assertNotNull(message);
assertEquals(data, message.getPayload());
assertEquals("/replyEndpoint", message.getReplyTo());
}