protected Date determineValidUntilDate() {
        val authenticationDate = token.getAuthentication().getAuthenticationDate();
        return DateTimeUtils.dateOf(authenticationDate.plusSeconds(token.getExpirationPolicy().getTimeToLive()));
    }
This is {@link OAuth20JwtAccessTokenEncodableCipher}.

@author Misagh Moayyed
@since 7.2.0
support/cas-server-support-oauth-core-api/src/main/java/org/apereo/cas/support/oauth/web/response/accesstoken/response/OAuth20JwtAccessTokenEncodableCipher.java