* a set of {@link HttpAdapter}s.
*/
public @NotNull List<A> parse(String systemId, InputStream is) {
XMLStreamReader reader = null;
try {
reader = new TidyXMLStreamReader(
XMLStreamReaderFactory.create(systemId,is,true), is);
XMLStreamReaderUtil.nextElementContent(reader);
return parseAdapters(reader);
} finally {
if (reader != null) {