SI-8786 disable part of thest that's failing the jdk8 build

As noted in SI-8786, this test currently fails the [jdk 8 build](https://scala-webapps.epfl.ch/jenkins/view/2.11.x/job/scala-nightly-auxjvm-2.11.x/jdk=jdk8,label=auxjvm/122/console).

Could do with a comment to link to the ticket