@Deprecated
    public static @Nonnull String getCoOwnerIDs(@Nonnull OwnershipDescription descr) {
        StringBuilder coowners= new StringBuilder();
        for (String userId : getSecondaryOwnerIds(descr, true)) {
            //TODO: Bug? Should it be != ?
            if (coowners.length() == 0) {
                coowners.append(",");
            }
            coowners.append(userId);      
        }
        return coowners.toString();
    }