Why is the openjdk Stax Parser failing reading a rdf file?

[i30817]

This (large, so no tostring workarounds)
http://www.gutenberg.org/feeds/catalog.rdf.zip
file is throwing this exception:
javax.xml.stream.XMLStreamException: ParseError at [row,col]:[1,1]
Message: Content is not allowed in prolog.
        at com.sun.org.apache.xerces.internal.impl.XMLStreamReaderImpl.next(XMLStreamReaderImpl.java:591)
(my code)....

when i try to read it with the normal:

1   2   3   4   5

XMLInputFactory f = XMLInputFactory.newInstance();         XMLStreamReader r = f.createXMLStreamReader(s);         while(r.hasNext()) {             System.out.println(r.next());         }

No byte order marks i can see before the < .

[i30817]

ZipInputStream needs to call getNextEntry to position its cursor 

If you don't it just gives the same (illegal) byte, over, and over and over again.

[Riven]

Why don't you GZ it, instead of ZIP?

Games published by our own members! Check 'em out!

[i30817]

It's not mine. It's the Gutemberg project that provides it, this page in fact:
http://www.gutenberg.org/wiki/Gutenberg:Feeds#The_Project_Gutenberg_Catalog_in_RDF.2FXML_Format