code: public final static String toJSON(HELM2Notation helm2notation) throws JsonProcessingException {
      ObjectMapper mapper = new ObjectMapper();
      String jsonINString = mapper.writeValueAsString(helm2notation);
      jsonINString = mapper.writerWithDefaultPrettyPrinter().writeValueAsString(helm2notation);
      return jsonINString;
    }
docs: method to generate a JSON-Object from the given HELM2Notation
  
  @param helm2notation HELM2Notation object
  @return NotationContainer in JSON-Format
  @throws JsonProcessingException json could not produced