public List<Address> generateRecipients() {
if (recipients == null) {
Set<Address> addresses = new HashSet<Address>();
Map<Object, List<Address>> recipientsMap = dm.locateAll(keys);
for (List<Address> a : recipientsMap.values()) addresses.addAll(a);
recipients = Immutables.immutableListConvert(addresses);
}
return recipients;
}
