Java - Javax.xml.bind.JAXBException: Class *** nor any of its super class is known to this context

I have a converter class

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();
    }

}

When I try to run test :

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));
}

I have this error :

javax.xml.bind.JAXBException: Class *** nor any of its super class is known to this context

It seems like I can't use Point to my marshal function ?