external/tika/src/main/java/com/digitalpebble/stormcrawler/tika/DOMBuilder.java
@Override
    public void startDTD(String name, String publicId, String systemId)
            throws org.xml.sax.SAXException {

        // Do nothing for now.
    }
@Override
    public void startDTD(String name, String publicId, String systemId)
            throws org.xml.sax.SAXException {

        // Do nothing for now.
    }
Report the start of DTD declarations, if any.

Any declarations are assumed to be in the internal subset unless
otherwise indicated.

@param name
The document type name.
@param publicId
The declared public identifier for the external DTD subset, or
null if none was declared.
@param systemId
The declared system identifier for the external DTD subset, or
null if none was declared.
@see #endDTD
@see #startEntity