Java - Javax.xml.bind.JAXBException: Class *** 或其任何超类在此上下文中都是已知的

如何解决Java - Javax.xml.bind.JAXBException: Class *** 或其任何超类在此上下文中都是已知的

我有一个转换器类

public class Convert {

    private JAXBContext context;
    private final GeometryFactory geometryFactory = new GeometryFactory();
    private JTSToGML321GeometryConverter converter;


    public Convert() throws JAXBException {
        context = JAXBContext.newInstance(ObjectFactory.class.getPackage().getName());
        converter = new JTSToGML321GeometryConverter();
    }

    public String marshal(Geometry geometry) throws JAXBException {
        final StringWriter stringWriter = new StringWriter();
        final Marshaller marshaller = context.createMarshaller();
        marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT,true);
        marshaller.marshal(geometry,new StreamResult(stringWriter));
        return stringWriter.toString();
    }

}

当我尝试运行测试时：

public class aaaTest {

    private final GeometryFactory geometryFactory = new GeometryFactory();

    private static final Logger logger = LoggerFactory.getLogger(SendJtsTest.class);

    @Test
    public void testSendPoint1() throws Exception {

        final Point point = geometryFactory.createPoint(new Coordinate(10,20));
        point.setSRID(4326);
        Convert convert = new Convert();

        logger.info(convert.marshal(point));
}

我有这个错误：

javax.xml.bind.JAXBException: Class *** 或其任何超类在此上下文中都是已知的

好像我不能使用 Point to my marshal 函数？