You can disconnect from XMLStreamReader , which has DTD support disabled:
import javax.xml.bind.*; import javax.xml.stream.*; import javax.xml.transform.stream.StreamSource; public class Demo { public static void main(String[] args) throws Exception { JAXBContext jc = JAXBContext.newInstance(Customer.class); XMLInputFactory xif = XMLInputFactory.newFactory(); xif.setProperty(XMLInputFactory.SUPPORT_DTD, false); XMLStreamReader xsr = xif.createXMLStreamReader(new StreamSource("input.xml")); Unmarshaller unmarshaller = jc.createUnmarshaller(); Customer customer = (Customer) unmarshaller.unmarshal(xsr); } }
Extra
If you want to write a DTD declaration, you can do the following:
XMLOutputFactory xof = XMLOutputFactory.newFactory(); XMLStreamWriter xsw = xof.createXMLStreamWriter(System.out); xsw.writeDTD("<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\" \"http://www.w3.org/TR/html4/loose.dtd\">"); Marshaller marshaller = jc.createMarshaller(); marshaller.setProperty(Marshaller.JAXB_FRAGMENT, true); marshaller.marshal(html, xsw); xsw.close();