code: public LOADSTATUS loadFont(URL url) throws IOException, VectorPrintException {
        return loadFont(url.openStream(), url.toString().substring(url.toString().lastIndexOf('.')));
     }
docs: calls {@link #loadFont(java.io.InputStream, java.lang.String) } with the file extension from the
  URL
  
  @param url
  @return
  @throws IOException