[keycloak-user] Retrieving Logged In User Information.

[PAA KOJO KONDUAH AMOS]

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?


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