If I validate an XSD file via the file= attribute, it works, but if I try and validate a fileset, I get a "cannot find the declaration of element" message that implies the parser is only set up for DTD validation, and not schema.
Probably for the same reason as Bug 32719 - parser initialization seems to work only for the first file.
Sorry Bug 32791
seems to work now. *** This bug has been marked as a duplicate of 32719 ***