try {
jaxbContext = JAXBContext
.newInstance("de.archivator.altdaten.model");
Unmarshaller unmarshaller = jaxbContext.createUnmarshaller();
unmarshaller.setEventHandler(new AltdatenValidationEventHandler());
Dataroot archive = (Dataroot) unmarshaller.unmarshal(is);
tabelle = archive.getTabelleX0020Archiv();
} catch (JAXBException e) {
e.printStackTrace();
}
}