* used in the ReaderFactory, runtime errors.
* Instead, we avoid ReaderFactory and pick the right reader below ourselves. */
Reader input = new BufferedReader(getReader(url));
FormatFactory formatFactory = new FormatFactory(8192);
IChemFormat format=formatFactory.guessFormat(input);
if (format!=null) {
if (format instanceof RGroupQueryFormat ) {
cor = new RGroupQueryReader();
cor.setReader(input);