I need to provide some mock object array of this type "TypeA[]".
I am trying to do this but getting classcastexception:
List mockList = Mockito.anyListOf(TypeA.class);
when(someService.create(Mockito.any(TypeB.class), (TypeA[])mockList.toArray())).thenReturn(1);
The error message told you clearly :
You cannot use argument matchers outside of verification or stubbing.
Examples of correct usage of argument matchers:
when(mock.get(anyInt())).thenReturn(null);
doThrow(new RuntimeException()).when(mock).someVoidMethod(anyObject());
verify(mock).someMethod(contains("foo"))
The method call to object returned by Mockito.anyListOf can only inside stubbing or verification .
you can simply do that to mock array :
when(mockTest.create(any(TypeB.class), any(TypeA[].class))).thenReturn(1);
