[keycloak-user] KeycloakPrincipal ClassCastException in JSF custom component

Using KeyCloak 2.5.4 and Wildfly 10.1.0 I am attempting to create a JSF component that involves Keycloak. I am getting this exception: java.lang.ClassCastException: org.keycloak.KeycloakPrincipal cannot be cast to org.keycloak.KeycloakPrincipal Below is the line of code that throws the exception. public void encodeBegin(FacesContext context) { .......... KeycloakPrincipal<KeycloakSecurityContext> kp = (KeycloakPrincipal<KeycloakSecurityContext>) context.getExternalContext().getUserPrincipal(); .......... } Funny thing is this. The exception is only thrown when the JSF Component is in a separate jar and then added to the project. If I put the code in question directly in the project, it doesn't throw the exception. Can anyone help me with this?