@JsonIgnore
    public boolean isStillInExpirationWindow() {
        val now = ZonedDateTime.now(Clock.systemUTC());
        return expiration != null && (expiration.isAfter(now) || expiration.isEqual(now));
    }
Is the entry still locked and in its expiration window?

@return true/false
api/cas-server-core-api-throttle/src/main/java/org/apereo/cas/web/support/ThrottledSubmission.java