[uw_rob]

In my experience with Mockito and unit tests I haven't ever ran into this. However it seems like a very valid concern, and I could definitely see it causing problems.

I wonder if it is possible to use reflection and have mockito throw an exception if a stub method is called.

[lmm]

Not really. You can set a custom default answer and you can write a method that creates mocks with that answer, but there are enough rough edges that it ends up amounting to writing your own test framework. Much easier to just use EasyMock.