Read XML as DOM

  
import java.io.IOException;
import java.io.InputStream;
import java.io.StringReader;

import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;

import org.w3c.dom.Document;
import org.w3c.dom.Node;
import org.xml.sax.EntityResolver;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;

/**
 *  
 *
 * @author Costin Manolache
 */
public class Main {
  public static class NullResolver implements EntityResolver {
    public InputSource resolveEntity (String publicId,
                                               String systemId)
        throws SAXException, IOException
    {
        return new InputSource(new StringReader(""));
    }
}

  /** Read XML as DOM.
   */
  public static Document readXml(InputStream is)
      throws SAXException, IOException, ParserConfigurationException
  {
      DocumentBuilderFactory dbf =
          DocumentBuilderFactory.newInstance();

      dbf.setValidating(false);
      dbf.setIgnoringComments(false);
      dbf.setIgnoringElementContentWhitespace(true);
      //dbf.setCoalescing(true);
      //dbf.setExpandEntityReferences(true);

      DocumentBuilder db = null;
      db = dbf.newDocumentBuilder();
      db.setEntityResolver( new NullResolver() );

      // db.setErrorHandler( new MyErrorHandler());

      Document doc = db.parse(is);
      return doc;
  }
}