Ignoring the DOCTYPE element while parsing the xml

Question

I am using JAXB parser to read from and write into my xml file using java code. My xml file contains a DOCTYPE element pointing to a .dtd file which does not exist, due to which I get a FileNotFoundException when JAXB tries to read the xml file. Hence, after unmarshalling the xml file using jaxb, I use a SAXParser to get an XMLReader which removes this DOCTYPE element as given below -
SAXParserFactory parserFactory = SAXParserFactory.newInstance();
parserFactory.setValidating(false);
XMLReader reader = parserFactory.newSAXParser().getXMLReader();
reader.setFeature("http://apache.org/xml/features/nonvalidating/load-external-dtd", false);
After making the required changes to the xml file and marshalling it back, I then use an XMLWriter to add the DOCTYPE element back to the xml file as given in the code snippet below -
SAXReader saxReader = new SAXReader();
Document document = saxReader.read(_file);
document.addDocType(rootElement, publicUri, systemUri);
XMLWriter output = new XMLWriter(new FileWriter( _file ));
output.write( document );
output.close();
Right now I am using both, the JAXB parser to read from and write into the xml file and SAXParser/SAXRader just to delete/add the DOCTYPE element. I want to avoid using two different parsers in my class and want to know if JAXB provides any mechanism to delete and then add this element while parsing the xml file.

Answer 1

Standard answer for this FAQ: set an EntityResolver on your parser that sends an empty string instead of the DTD. The API docs have an example that you could modify to do that.