This PR fixes polishes trivial stuff.

Comment From: sbrannen

This has been merged into master.

Thanks

Comment From: sbrannen

For future reference, when polishing test assertions like that, please favor idiomatic AssertJ APIs as I did in 70f0895f961bc3a2babcc8fe72f0804770e4dd5a.

Comment From: Rebwon

@sbrannen Thank you for advice.