Merge "Register connect callback when the service is up"

                                }

                            }

                        }

                        synchronized (mBluetoothConnectionCallbackExecutorMap) {

                            if (!mBluetoothConnectionCallbackExecutorMap.isEmpty()) {

                                try {

                                    final SynchronousResultReceiver recv =

                                            SynchronousResultReceiver.get();

                                    mService.registerBluetoothConnectionCallback(

                                            mConnectionCallback,

                                            mAttributionSource, recv);

                                    recv.awaitResultNoInterrupt(getSyncTimeout())

                                            .getValue(null);

                                } catch (RemoteException | TimeoutException e) {

                                    Log.e(TAG, "onBluetoothServiceUp: Failed to register "

                                            + "bluetooth connection callback", e);

                                }

                            }

                        }

                    } finally {

                        mServiceLock.readLock().unlock();

                    }