@Test
  public void testWriteObjectSampleType() throws Exception {
    JsonXML config = JsonXMLDefault.class.getAnnotation(JsonXML.class);
    SampleType sampleType = new SampleType();
    sampleType.element = "hi!";

    StringWriter writer = new StringWriter();
    JAXBContext context = JAXBContext.newInstance(SampleType.class);
    new JsonXMLBinder().writeObject(SampleType.class, config, context, writer, sampleType);

    String json = "{\"sampleType\":{\"element\":\"hi!\"}}";
    Assert.assertEquals(json, writer.toString());
  }
  @Test
  public void testMarshallSampleType() throws Exception {
    JsonXML config = JsonXMLDefault.class.getAnnotation(JsonXML.class);
    StringWriter result = new StringWriter();
    Class<?> type = SampleType.class;
    SampleType sampleType = new SampleType();
    sampleType.element = "hi!";

    XMLStreamWriter writer = new JsonXMLBinder().createXMLStreamWriter(type, config, result);
    Marshaller marshaller = JAXBContext.newInstance(type).createMarshaller();
    new JsonXMLBinder().marshal(type, config, marshaller, writer, sampleType);
    writer.close();

    String json = "{\"sampleType\":{\"element\":\"hi!\"}}";
    Assert.assertEquals(json, result.toString());
  }