Проблема с регулярным выражением на Java?

public static void main(String[] args) {
        String mHtmlCode = "";
        try{
        Scanner in = new Scanner(new FileReader("page.txt"));
        StringBuilder sb = new StringBuilder();
while(in.hasNext()) {
    sb.append(in.next());
}
in.close();
mHtmlCode = sb.toString();

        }catch(Exception ex){System.out.println(ex.getMessage());}
        
        //System.out.println(mHtmlCode);
        
        String mapZoom = "";                           
                            Pattern pMapZoom = Pattern.compile("data-token=\"(.*?)\"\\n\\s+data-ad-id=\"(.*?)\">");
                            Matcher mMapZoom = pMapZoom.matcher(mHtmlCode);
                            //Log.d(TAG, "HTML: " + mHtmlCode);
                            int i=0;
                            while(mMapZoom.find()) {
                                
                                if(mMapZoom.group(1).length()>0) {
                                    //Log.d(TAG, "data[map_zoom]=: " + mMapZoom.group(1));
                                    System.out.println("token=: " + mMapZoom.group(1));
                                    mapZoom = mMapZoom.group(1);
                                    break;
                                }
                                i++;
                            } 
    }