Mockito - NullpointerException when stubbing Method

Question

So I started writing tests for our Java-Spring-project.

What I use is JUnit and Mockito. It\'s said, that when I use the when()...thenReturn() option I can mock ser

Answer 1

I had the same problem and my issue was simply that I had not annotated the class properly using @RunWith. In your example, make sure that you have:

@RunWith(MockitoJUnitRunner.class)
public class Test {
...

Once I did that, the NullPointerExceptions disappeared.