ERROR Parsing xml from EAN using java

I'm trying to retrieve information from the EAN API. But i keep receiving the "Content is not allowed in prolog" error.

URL url = null;
    InputStream is = null;
    SAXBuilder builder = null;
    Document doc = null;
    Element root = null;

            try {
                String query= "http://ift.tt/1ufcAeN;" +
                "minorRev=20&apiKey=fhmj76udakf3upamm5sk9qmr&locale=en_US&currencyCode=USD&latitude="
                        + lat + "&longitude=" + lng + "&xml=<HotelListRequest><numberOfResults>10</numberOfResults></HotelListRequest>";


            url = new URL(query);
            is = url.openStream();
            builder = new SAXBuilder();
            doc = builder.build(is);

            root = doc.getRootElement();
            List<Element> HotelList = root.getChildren("HotelList");
            Element Hotel = HotelList.get(0);
            List<Element> SummaryList = Hotel.getChildren("HotelSummary");
            Element Summary;
            String[] names = new String [SummaryList.size()];
            String[] addresses = new String[SummaryList.size()];
            String[] hotelRatings = new String[SummaryList.size()];
            String[] highRates = new String[SummaryList.size()];
            String[] lowRates = new String[SummaryList.size()];

            for (int i=0; i< SummaryList.size(); i++) {
                Summary = SummaryList.get(i);
                names[i] = Summary.getChildText("name");
                addresses[i] = Summary.getChildText("address1");
                addresses[i] += Summary.getChildText("address2");
                hotelRatings[i] = Summary.getChildText("hotelRating");
                highRates[i] = Summary.getChildText("highRate");
                lowRates[i] = Summary.getChildText("lowRate");
                }

That's my code. I really don't understand what's missing. Maybe someone could give a hint, or help. I've been trying to figure this out the whole day and it's making me crazy. Any help will be appreciated.