A.ActionErrorserrors=newActionErrors();errors.add("loginFailed","failtologin");saveErrors(request,errors)
B.ActionErrorserrors=newActionErrors();errors.add("loginFailed",newActionError("login.failed"));saveErrors(request,errors)
C.request.setAttribute("error",newActionErrors(“login.failed”))
D.ActionErrorserrors=newActionErrors("login.failed”);saveErrors(request,errors)