@Test
 public void canWrite() throws Exception {
   assertTrue(
       "Converter does not support writing @XmlRootElement",
       converter.canWrite(RootElement.class, null));
   assertTrue(
       "Converter does not support writing @XmlRootElement subclass",
       converter.canWrite(RootElementSubclass.class, null));
   assertTrue(
       "Converter does not support writing @XmlRootElement subclass",
       converter.canWrite(rootElementCglib.getClass(), null));
   assertFalse("Converter supports writing @XmlType", converter.canWrite(Type.class, null));
 }