It would be great to have a demo which showcases Jenkinsfile Runner with Java 11.

Acceptance criteria:

• Pipeline: Some mock configuration, which demonstrates execution of a Pipeline with JDK11. E.g. building and testing a hello-world project. It may require Maven for real cases, but a more simple build with Javac could do the job
• JAXB Plugin is included into the demo. It might be useful to run SLOCCount in the demo so that we can also use it as a smoke test
• Makefile passes custom CPU and memory limitations to the container. Just to show how it can be done with Java 11 for Docker (cgroups). https://blog.docker.com/2018/04/improved-docker-container-integration-with-java-10/ 
• There is a test automation so the the demo is used as a smoke test