docs: public DataSetInfo create(int dataSet) throws InvalidDataSetException {
  		DataSetInfo info = dataSets.get(createKey(dataSet));
  		if (info == null) {
  			int recordNumber = (dataSet >> 8) & 0xFF;
  			int dataSetNumber = dataSet & 0xFF;
  			throw new UnsupportedDataSetException(recordNumber + ":" + dataSetNumber);
  			// info = super.create(dataSet);
  		}
  		return info;
  	}