[keycloak-user] Exceptions when including 'keycloak-spring-boot-adapter' under Jetty

Hello, I'm trying to secure a Spring Boot-based application using Keycloak, but as soon as I include the 'keycloak-spring-boot-adapter' artifact, my application does not start anymore, throwing seemingly unrelated exceptions. I'm following this tutorial <http://slackspace.de/articles/authentication-with-spring-boot-angularjs-a... the backend part, but I upgraded all version numbers to the latest final releases available. I've created a stripped down version of the application with which I can reproduce the errors. It can be found on my GitHub <https://github.com/bdalenoord/keycloak-spring-boot-issue>;. If I remove the adapter-artifact, everything starts normally. I'm guessing it has to do with Spring Boots autoconfiguration, but I cannot figure out what I should change to get everything working. Can anyone tell me what I'm doing wrong and what I can do to fix the problem? Thanks, Bas