// First validate ourself
ActionErrors errors = super.validate(mapping,request);
if (null==errors) errors = new ActionErrors();
// Then validate our business request
if ((isMutable()) && (errors.empty())) {
// Find our business request type
BizFormBean bizFormBean = (BizFormBean)
mapping.getMappings().getServlet().findFormBean(mapping.getName());
String bizType = bizFormBean.getBizType();