public boolean tooOld() {
long now = Clock.getInstance().now();
long earliestValid = now - OFFSET_VALIDITY;
long latestValid = now + OFFSET_VALIDITY;
if (_creationDate == null) return true;
if (_creationDate.getTime() < earliestValid) return true;
if (_creationDate.getTime() > latestValid) return true;
return false;
}
public SessionConfig(Destination dest) {
_destination = dest;
_creationDate = new Date(Clock.getInstance().now());
}