docs: private boolean isEclipseMap(final URI mapFile) throws DITAOTException {
          final DocumentBuilder builder = getDocumentBuilder();
          Document doc;
          try {
              doc = builder.parse(mapFile.toString());
          } catch (final SAXException | IOException e) {
              throw new DITAOTException("Failed to parse input map: " + e.getMessage(), e);
          }
          final Element root = doc.getDocumentElement();
          return ECLIPSEMAP_PLUGIN.matches(root);
      }