Comment 4 for bug 400259

The file: url in the patch has too many slashes. I would suggest plain "/usr/share/xml/schema/xml-core/tr9401.dtd" as the system identifier.

Arguably this is a bug in org.apache.xml.resolver, cf. http://www.oasis-open.org/committees/download.php/14809/xml-catalogs.html#s.bootstrap - the resolver should be able to parse catalog files without needing to resolve external entities