from the OW release
2 Members of oneworld airline frequent flyer programmes can earn mileage rewards on eligible Qantas-coded Jetstar flights using these fares once their frequent flyer programme host airline has implemented interline links with Jetstar. Currently, this applies to American Airlines, Cathay Pacific, Finnair, Japan Airlines, LAN, Qantas and Royal Jordanian.
also note;
While Qantas is a oneworld founding partner, Jetstar is not part of the alliance.