I would like to get an AAdvantage or BA Avios mileage ticket from OKA to MMY on Japan Transocean Air, a oneworld affiliate of JAL officially recongized as such on the AA website. AA told me that this is only possible when the NU flight has a JL codeshare. Does anyone have any experience with this? Is NU a oneworld airline or not? For example, would it earn AA status miles, or would a oneworld emerald member get an extra baggage allowance? Is there any work-around to get an AAdvantage ticket issued?