*/
public void processPOIFSReaderEvent(final POIFSReaderEvent event)
{
DocumentDescriptor d;
final DocumentInputStream is = event.getStream();
if (!is.markSupported())
throw new UnsupportedOperationException(is.getClass().getName() +
" does not support mark().");
/* Try do handle this document as a property set. We receive
* an exception if is no property set and handle it as a