> @@ -216,6 +251,18 @@ public int getToPort() {
> return cidrBlocks;
> }
>
> + /**
> + * Each entry must be either an integer or a range. If not specified,
> connections through any port are allowed.
> + * Example inputs include: ["22"], ["80,"443"], and ["12345-12349"].
> + * <p/>
> + * It is an error to specify this for any protocol that isn't UDP or TCP.
> + *
> + * @return An optional list of ports which are allowed.
What does "optional" mean here? If it means "can be null", perhaps make that
explicit?
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