code: @Override
  	public Data read(@Nonnull final URL url, @Nonnull final Charset charset) {
  		Check.notNull(url, "url");
  		Check.notNull(charset, "charset");
  
  		Data data = Data.EMPTY;
  		try {
  			data = readXml(UrlUtil.open(url), charset);
  		} catch (final CanNotOpenStreamException e) {
  			LOG.warn(e.getLocalizedMessage());
  		}
  
  		return data;
  	}
docs: Reads the <em>UAS data</em> in XML format based on the given URL.
  
  @param url
  {@code URL} to User-Agent informations
  @param charset
  the character set in which the data should be read
  @return read in User-Agent data as {@code Data} instance otherwise {@link Data#EMPTY}
  
  @throws net.sf.qualitycheck.exception.IllegalNullArgumentException
  if any of the given arguments is {@code null}