Hi, I will flying in J in Qatar Air (which just joined One World) in the coming March, I seen from Qatar web:
" oneworld lounge access for First Class or Business Class customers
Indulge yourself before departure in a wider range of airport lounges when you fly First Class or Business Class with any oneworld member airline.
Customers flying First or Business Class have access to the equivalent class of lounge regardless of their frequent flyer status. First Class passengers may use a Business Class or frequent flyer lounge if a First Class lounge is not available."
Is it mean that I have the option to use the CX lounge at the airport, instead of the lounge used by Qatar? I am flying out from HKG to BCN.