Update Mockito and JUnit

[jmini]

This is updating Mockito and JUnit

Based on the work of @gedeffe in #943

[gedeffe]

Hello @jmini ,
There is global replace to do with new libraries:

Mockito.<Object>any() ==> Mockito.any(Object[].class)

[jmini]

@gedeffe thank you very much for the hint!