class XmlRegression {

    public static synchronized JAXBContext context() throws JAXBException{ 
    
        List<Class> xmlClasses = xmlClasses();
        xmlClasses.add(XmlRegression.class);
        JAXBContext jaxb = JAXBContext.newInstance(xmlClasses.toArray(new Class[xmlClasses.size()]));
        return jaxb;
    }

}