QBluetoothDeviceDiscoveryAgent Android with JNI call causes null prt "SIGSEGV, code 1, fault addr 0x0"
I’m writing the Android wrapper for the Qt library using JNI and am having an issue with QBluetoothDeviceDiscoveryAgent. If a QBluetoothDeviceDiscoveryAgent instance is declared in Qt class like ; "QBluetoothDeviceDiscoveryAgent *discoveryAgent = new QBluetoothDeviceDiscoveryAgent();" I get a A/libc: Fatal signal 11 (SIGSEGV), code 1, fault addr 0x0 in tid in Android, if I just comment out the QBluetoothDeviceDiscoveryAgent code in the Qt library, everything seems to work correctly, but then I have no Bluetooth LE discovery.
I have configure permissions in the AndroidManifest for BLUETOOTH, BLUETOOTH_ADMIN, ACCESS_COARSE_LOCATION, INTERNET etc. and I’m testing with a Armeabi-v7a Qt 5.7.1 build on a Samsung S5 phone, have also tried a Qt 5.8 build with the same results.
Not sure what I am missing as all other Qt libraries used in my library functions correctly through my JNI implementation, but any bluetooth class QBluetoothDeviceDiscoveryAgent, QBluetoothLocalDevice etc. throws SIGSEGV .