[keycloak-user] Retrieving Logged In User Information.

Hello, I am trying to retrieve information about the User logged into the webapp via keycloak. I have seen around information on using the following; @SecurityDomain("keycloak") @Context SecurityContext sc; And KeycloakPrincipal principal = (KeycloakPrincipal) sc.getUserPrincipal(); But the above line is returning a NullPointerException. I must say, I have already done the required configuration; as in enabling the Keycloak Subsystem within my app server's server configuration: standalone.xml. Please any lead on how to retrieve the logged in User via KeyCloak? Sent from Mail for Windows 10