java – Mockito Problems – InvalidUseOfMatchersException

org.mockito.exceptions.misusing.InvalidUSEOfMatchersException: 
Invalid use of argument matchers!
2 matchers expected,1 recorded:
-> at cl.gps.tms.planifications.planification.test.PlanificationCreateTest.setUp(PlanificationCreateTest.java:68)

This exception may occur if matchers are combined with raw values:
    //incorrect:
    someMethod(anyObject(),"raw String");
When using matchers,all arguments have to be provided by matchers.
For example:
    //correct:
    someMethod(anyObject(),eq("String by matcher"));

...

PlanificationCreateTest使用SimpleQueryBus创建一个通用查询,其中de first参数指示返回的对象类型,第二个参数是查询的过滤器.

我想要存根SimpleQueryBus类(外部库)返回null(仅限现在)

SimpleQueryBus代码

public class SimpleQueryBus implements QueryBus {

    public <T,R> R handle(Class<R> clazz,T query) throws Exception {
    ...
    }
}

我的测试代码

public class PlanificationCreateTest {

    private QueryBus queryBus;

    @Before
    public void setUp() throws Exception {
        queryBus = Mockito.mock(SimpleQueryBus.class);

        when(queryBus.handle(VehicleCollection.class,any(GetVehicle.class))).thenAnswer(null);

        ....
    }
}

更新(已解决)：

public class PlanificationCreateTest {

    private QueryBus queryBus;

    @Before
    public void setUp() throws Exception {
        queryBus = Mockito.mock(SimpleQueryBus.class);

        // first example
        when(queryBus.handle(any(Class.class),isA(VehicleAvailable.class))).thenReturn(null);          

        // second example
        vehicle = new VehicleCollection("001","name","tag","brand","model");            
        when(queryBus.handle(any(Class.class),isA(GetVehicle.class))).thenReturn(vehicle);

        ....
    }
}

谢谢…