code: public RuntimeParameter addParameter(String key, String value)
      {
          RuntimeParameter jp = new RuntimeParameter();
          jp.setJi(this.getId());
          jp.setKey(key);
          jp.setValue(value);
          return jp;
      }
docs: Helper method to add a parameter without having to create it explicitely. The created parameter should be persisted afterwards.
  
  @param key
  name of the parameter to add
  @param value
  value of the parameter to create
  @return the newly created parameter