4.3 XML Resolver

The framework uses the Apache XML commons resolver to avoid accessing the Internet for Catalog files. The resolver is configured through the CatalogManager.properties and xml-catalog.xml files in the src/resolver directory of the distribution.

If you update e.g. the Docbook XML version, you must also update the catalog file to match the new version. Else the rendering process will have no knowledge of your changes and access the Internet to download the required DTD files.