It probably means you have declared your Model or Controller classes wrongly.

它意味着模型、控制类声明有错。

youdao

In fact, simple controller classes aren't tied to JSF at all, making them easier to test.

事实上，简单的控制器类根本与JSF没有联系，这使得它们更加容易测试。

youdao

The methods within the class are standard methods outlined for all portlet controller classes.

这个类中的方法是所有的 portlet 控制器类中概括的标准方法。

youdao