code: public void readFile(String filename) throws ConverterException {
          try {
              content = "";
              final InputStream input = ResourceManager.getInputStream(filename);
              while (input.available() > 0) {
                  content = content + (char) input.read();
              }
              input.close();
          } catch (Exception e) {
              throw new ConverterException(e);
          }
      }
docs: Reads the content of the converter file
  
  @param filename The file
  @throws ConverterException