String xmlName = "xml/po.xml";
URL xml = getURL(xmlName);
SchemaBinding schema = XsdBinder.bind(xsd.toExternalForm());
Unmarshaller unmarshaller = UnmarshallerFactory.newInstance().newUnmarshaller();
PurchaseOrder po = (PurchaseOrder)unmarshaller.unmarshal(xml.toExternalForm(), schema);
assertEquals(PurchaseOrder.DEFAULT_INSTANCE, po);
}