code: void parse(File file) throws ParseException {
          if (file == null) {
              Log.warn("parsing NULL file, so fallback on default configuration!");
              return;
          }
          if (!file.exists()) {
              Log.warn(String.format("parsing not existing file %s, so fallback on default configuration!", file.getAbsolutePath()));
              return;
          }
          try {
              FileReader reader = new FileReader(file);
              parse(reader);
          } catch (FileNotFoundException fex) {
              Log.warn(String.format("parsing not existing file %s, so fallback on default configuration!", file.getAbsolutePath()), fex);
              return;
          }
      }
docs: Parse the configuration from file.