JAXBIntrospector jbi = JAXBUtils.getJAXBIntrospector(context.getJAXBContext());
QName expectedQName = jbi.getElementName(jaxb);
// Create a Block using the sample string as the content. This simulates
// what occurs with an outbound JAX-WS JAXB parameter
Block block = f.createFrom(jaxb, context, expectedQName);
// We did pass in a qname, so the following should return false
assertTrue(block.isQNameAvailable());
// Assume that we need to find the QName (perhaps to identify the operation and