code: private static <E> void loadIntoCounter(String filename, Class<E> c, Counter<E> counter) throws RuntimeException {
      try {
        Constructor<E> m = c.getConstructor(String.class);
        BufferedReader in = IOUtils.getBufferedFileReader(filename);// new
                                                                    // BufferedReader(new
                                                                    // FileReader(filename));
        String line = in.readLine();
        while (line != null && line.length() > 0) {
          int endPos = Math.max(line.lastIndexOf(' '), line.lastIndexOf('\t'));
  
          counter.setCount(m.newInstance(line.substring(0, endPos).trim()), Double.parseDouble(line.substring(endPos, line.length()).trim()));
  
          line = in.readLine();
        }
        in.close();
      } catch (Exception e) {
        throw new RuntimeException(e);
      }
    }
docs: Loads a file into an GenericCounter.