Hello all: I have followed the steps from http://blog.keycloak.org/2017/05/easily-secure-your-spring-boot.html and found that Keycloak will secure the example but does not seem to be able to return a Principal. I am not sure what I have done wrong, especially since I have not modified the example. I noticed that I am using Spring Boot 1.5.16.RELEASE which is several versions ahead of the example (but a few versions behind what is available from https://start.spring.io/. I think Keycloak is great but if I cannot somehow learn who the logged in user is from the Principal (or some other means) then I might not be able to use it for the projects that I have in mind. Thanks! Clayton Spring Framework - Spring Initializr<https://start.spring.io/> {"_links":{"maven-project":{"href":"https://start.spring.io/starter.zip?type=maven-project{&dependencies,packaging,javaVersion,language,bootVersion,groupId,artifactId ... start.spring.io [https://lh4.googleusercontent.com/proxy/Nu0C05WIS1nzgEEGZJ58I5B3iH2zTo7CF... Easily secure your Spring Boot applications with Keycloak<http://blog.keycloak.org/2017/05/easily-secure-your-spring-bo... Keycloak defines the concept of a realm in which you will define your clients, which in Keycloak terminology means an application that will be secured by Keycloak, it can be a Web App, a Java EE backend, a Spring Boot etc. blog.keycloak.org