import com.sun.xml.internal.bind.v2.runtime.unmarshaller.SAXConnector; //导入依赖的package包/类
private Object associativeUnmarshal(XmlNode xmlNode, boolean inplace, Class expectedType) throws JAXBException {
    if (xmlNode == null)
        throw new IllegalArgumentException();

    JaxBeanInfo bi = null;
    if(expectedType!=null)
        bi = context.getBeanInfo(expectedType, true);

    InterningXmlVisitor handler = new InterningXmlVisitor(
        getUnmarshaller().createUnmarshallerHandler(scanner,inplace,bi));
    scanner.setContentHandler(new SAXConnector(handler,scanner.getLocator()));
    try {
        scanner.scan(xmlNode);
    } catch( SAXException e ) {
        throw unmarshaller.createUnmarshalException(e);
    }

    return handler.getContext().getResult();
}