Trying to access OS400/DB2 Stored Procedure Output Parameters with JdbcTemplate

Trying to access OS400/DB2 Stored Procedure Output Parameters from Java with Spring JdbcTemplate. My Stored Procedure last parameter is a input/out parameter if the record is updated I will get back "Y" from the main frame. Can someone please give me a close on how to access the 2nd parameter and see if it is a "Y"

Code:
XmlBeanFactory beanFactory = new XmlBeanFactory(new ClassPathResource("as400.xml"));
DataSource ds = (DataSource) beanFactory.getBean("dataSource");
jdbc = new JdbcTemplate(ds);
int res= jdbc.update("{CALL TESTONE(?,?)}", new Object[] { new String("JOHN"), new String("N") });