fix cast exception

src/main/java/au/com/royalpay/payment/manage/permission/manager/ManagerUserInterceptor.java

@@ -42,8 +42,12 @@ public class ManagerUserInterceptor extends HandlerInterceptorAdapter implements
 
     @Override
     public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
+        if (handler instanceof HandlerMethod) {
             Method method = ((HandlerMethod) handler).getMethod();
             return handleMethod(method, request, response) && super.preHandle(request, response, handler);
+        } else {
+            return super.preHandle(request, response, handler);
+        }
     }
 
     private boolean handleMethod(Method method, HttpServletRequest request, HttpServletResponse response) {