Bug Report: SturdyRef doesn't have expiration date

[Chip Morningstar]

>    /**
>     * Produce a SturdyRef for an object.
>     *
>     * @param obj The object for which a SturdyRef is desired
>     * @param expirationDate The date after which the SturdyRef will not
>     *   longer be guaranteed to be valid
>     *
>     * @return A new SturdyRef for the indicated object
>     */
>    public SturdyRef makeSturdyRef(Object obj, Date expirationDate) {
>        ObjectID objectID = register(obj, expirationDate);
>        return new SturdyRef(this, myProxyManager.searchPath(), objectID);
>    }
>
>Also, class SturdyRef declares no state for representing the expiration
>date.  However, EARL does have such state, and encodes/parses it to/from a
>cap: URI.  Was it omitted from SturdyRef for a reason, or should I just fix it?

We didn't have date parsing working at the time, as I recall. You should just
fix it. Also fix the grammatical error in the comment while you're at it.