how to enable cas 5.3.X listen on http port?

I am following this documentation for CAS, but it doesn't work for me.

Enable HTTP connections for the embedded Tomcat container, in addition to the configuration linked to the server.port setting.

# cas.server.http.port=8080
# cas.server.http.protocol=org.apache.coyote.http11.Http11NioProtocol
# cas.server.http.enabled=true
# cas.server.http.attributes.attributeName=attributeValue