In Australia, it's called 'maiden milking' and again, normally with high-milking lines - it can usually also be brought about by massaging and milking the teats of an unkidded doe over 10 months old if she is from any decent lines. However, of course, it's not usually done for several reasons - they don't normally make much if they are brought into milk this way, and also, it can strip a lot of condition off a growing doe.
Every single one of our Swiss does has actually come into milk at a year old unkidded, some we've had to milk for a while to stop them getting mastitis, some were fat and we milked them as it was no detriment to them, but most I milk a little while and then dry off.

As has been mentioned, when unkidded, they may have an uneven udder (though none of our home-bred girls ever have :? One we bought as a maiden five year old was pretty uneven before kidding though) however this does not usually predict the type of udder they will have after kidding.
Although there is a threat of mastitis if the doe is not milked, unless the doe is in extremely good condition or overweight, and you have the time and inclination to milk her, it's usually recommended to let them dry up while keeping a close eye on them to make sure they don't get too full and uncomfortable, or contract mastitis.

For does who are not producing a lot, you may not have to do anything, while others may need partial milking, as in lactating does, to safely dry them off.
Cheers,
Cazz