@Override
        public boolean isEmpty() {
            return namespaces.isEmpty();
        }
This is {@link CustomNamespaceWSFederationClaimsClaimsHandler}.

@author Misagh Moayyed
@since 5.3.0
support/cas-server-support-ws-sts-api/src/main/java/org/apereo/cas/support/claims/CustomNamespaceWSFederationClaimsClaimsHandler.java