code: public Object[] getParameters(String paramid) {
          final Object parameter = getParameter(paramid);
          if (parameter == null) {
              return null;
          }
          if (parameter instanceof Object[]) {
              return (Object[]) parameter;
          } else {
              final Object[] result = {parameter};
              return result;
          }
      }
docs: Obtain parameters based on paramid as an array.
  
  @param paramid Parameter id
  @return Array list