Mockito error not applicable for arguments (void)

Question

Mockito throws the error "The method when(T) in the type Stubber is not applicable for the arguments (void)" for the class I’m mocking, I can’t understand why.

code in question:

 Mockito.when(mockObject.myMethod(Mockito.any(MyExecutionContext.class))).thenReturn(value); 

I know that similar questions have been asked, but if someone can explain this decision or point me in the right direction, I would really appreciate it

Answer 1

Decision:

 Mockito.doReturn(value) .when(mockObject) .myMethod(Mockito.any(MyExecutionContext‌​.class))