Is it possible to pair BluetoothDevice programmatically android?

Currently Iam using backport.android.bluetooth2.jar file for bluetooth programming with Android 1.5.Whenever device pairing fails it populates alert dialog for passKey and if i give passkey then in my log iam getting below error

07-21 12:25:52.419: WARN/BluetoothDeviceService(948): setPin(00:0E:6D:BA:89:F3)开发者_如何学编程 called but no native data available, ignoring. Maybe the PasskeyAgent Request was cancelled by the remote device or by bluez.

For successfully pair my BT device I always rebooting my tablet and manually pair the device with Settings options.So at last i realised to give this passKey programmatically but i haven't found any method for this.But in google opensource i found one method that is commented with @hide setPassKey(String Address,int passKey) in BluetoothDevice.java of backport.android.bluetooth2.jar .This will n't appear in my jar file.If any way is there for pairing the unbounded device please give reply ASAP?

In the AndroidBluetoothAPI_0.3.jar file following methods are available i,e: pair(address) and setPin() for setting the pin programmatically and connecting the BT device.For finding the signal strength method is available in this api.Below is the code project link

http://code.google.com/p/android-bluetooth/downloads/detail?name=AndroidBluetoothAPI_0.3.jar&can=2&q=