Using org.apache.xerces.parsers.SAXParser
Exception net.sf.saxon.trans.XPathException: org.xml.sax.SAXParseException; systemId: http://services.w3.org/tidy/tidy?docAddr=http://municipalite.lisle-verte.qc.ca/services_aux_citoyens/?id=questions_et_reponses; lineNumber: 1; columnNumber: 3; The markup in the document preceding the root element must be well-formed. 
org.xml.sax.SAXParseException; systemId: http://services.w3.org/tidy/tidy?docAddr=http://municipalite.lisle-verte.qc.ca/services_aux_citoyens/?id=questions_et_reponses; lineNumber: 1; columnNumber: 3; The markup in the document preceding the root element must be well-formed.