code: static AnonymousOdsDocument create(final Logger logger, final XMLUtil xmlUtil,
                                         final OdsElements odsElements) {
          return new AnonymousOdsDocument(logger, xmlUtil, odsElements,
                  new CommonOdsDocument(odsElements));
      }
docs: Create a new anonymous ODS document.
  
  @param logger      the logger
  @param xmlUtil     a util for XML writing
  @param odsElements the ods elements (file entries in zip archive)