Indonesian President Joko Widodo gestures during an interview with Reuters at the presidential palace in Jakarta, Indonesia in this February 10, 2016 file photo. REUTERS/Darren Whiteside

Indonesian President Joko Widodo gestures during an interview with Reuters at the presidential palace in Jakarta, Indonesia in this February 10, 2016 file photo. REUTERS/Darren Whiteside

Indonesian President Joko Widodo could bring temporary stress relief to Australia's Malcolm Turnbull. Photo: Reuters/Darren Whiteside

June 6, 2016 1:22 PM (UTC+8)