Hey Jean-Claude, One solution would be an XML Catalog, although I’m unsure if that would work with Xalan – an alternative would be to write the Java equivalent of Kataba - https://github.com/dgcliff/kataba On 12/5/16, 12:46 PM, "Code for Libraries on behalf of Jean-Claude Dauphin" <[log in to unmask] on behalf of [log in to unmask]> wrote: Jean-Claude