Merge "Fix crash when unpairing a device which supports CSIP" into udc-qpr-dev

import java.sql.Timestamp;

import java.util.ArrayList;

import java.util.Collection;

import java.util.HashSet;

import java.util.List;

import java.util.Set;

    public synchronized void onDeviceUnpaired(CachedBluetoothDevice device) {

        device.setGroupId(BluetoothCsipSetCoordinator.GROUP_ID_INVALID);

        CachedBluetoothDevice mainDevice = mCsipDeviceManager.findMainDevice(device);

        final Set<CachedBluetoothDevice> memberDevices = device.getMemberDevice();

        // Should iterate through the cloned set to avoid ConcurrentModificationException

        final Set<CachedBluetoothDevice> memberDevices = new HashSet<>(device.getMemberDevice());

        if (!memberDevices.isEmpty()) {

            // Main device is unpaired, to unpair the member device

            // Main device is unpaired, also unpair the member devices

            for (CachedBluetoothDevice memberDevice : memberDevices) {

                memberDevice.unpair();

                memberDevice.setGroupId(BluetoothCsipSetCoordinator.GROUP_ID_INVALID);

                device.removeMemberDevice(memberDevice);

            }

        } else if (mainDevice != null) {

            // the member device unpaired, to unpair main device

            // Member device is unpaired, also unpair the main device

            mainDevice.unpair();

        }

        mainDevice = mHearingAidDeviceManager.findMainDevice(device);