@Override
        @JsonIgnore
        public Set<String> getParameterNames() {
            return new HashSet<>();
        }
This is {@link NimbusOAuthJacksonModule}.

@author Misagh Moayyed
@since 6.3.0
support/cas-server-support-pac4j-api/src/main/java/org/apereo/cas/pac4j/serialization/NimbusOAuthJacksonModule.java