Several plugins have failing tests when using new versions of core (e.g. `mvn test -Djenkins.version=2.289`) and they seem to follow a simiular pattern
calling HTMLUnit's `click` to submit a form is resulting in Jenkins erroring with something like
which subsequently causes the test to fail.
On the surface this appears to be an incompatability between HTMLUnit and Jenkins bumping to the latest HTMLUnit seemed to make no difference.
So far observed the issue in