code: public static void debugLogDOMFeatures ()
    {
      for (final Map.Entry <EXMLDOMFeatureVersion, ICommonsList <String>> aEntry : s_aSupportedFeatures.entrySet ())
        for (final String sFeature : aEntry.getValue ())
          if (LOGGER.isInfoEnabled ())
            LOGGER.info ("DOM " + aEntry.getKey ().getID () + " feature '" + sFeature + "' is present");
    }
docs: Emit all supported features to the logger.