Migrating frameworks/base BT files

Bug: 206121418
Test: Compile
Change-Id: Idb55371e9d678296fe46e5f4231ec2d12ec8b978

1 files changed, 0 insertions, 4413 deletions

diff --git a/core/java/android/bluetooth/BluetoothAdapter.java b/core/java/android/bluetooth/BluetoothAdapter.java
deleted file mode 100644
index 661291c6f1e2..000000000000
--- a/core/java/android/bluetooth/BluetoothAdapter.java
+++ /dev/null
@@ -1,4413 +0,0 @@
-/*
- * Copyright 2009-2016 The Android Open Source Project
- * Copyright 2015 Samsung LSI
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package android.bluetooth;
-
-import static java.util.Objects.requireNonNull;
-
-import android.annotation.CallbackExecutor;
-import android.annotation.IntDef;
-import android.annotation.NonNull;
-import android.annotation.Nullable;
-import android.annotation.RequiresNoPermission;
-import android.annotation.RequiresPermission;
-import android.annotation.SdkConstant;
-import android.annotation.SdkConstant.SdkConstantType;
-import android.annotation.SuppressLint;
-import android.annotation.SystemApi; //import android.app.PropertyInvalidatedCache;
-import android.bluetooth.BluetoothDevice.Transport;
-import android.bluetooth.BluetoothProfile.ConnectionPolicy;
-import android.bluetooth.annotations.RequiresBluetoothAdvertisePermission;
-import android.bluetooth.annotations.RequiresBluetoothConnectPermission;
-import android.bluetooth.annotations.RequiresBluetoothLocationPermission;
-import android.bluetooth.annotations.RequiresBluetoothScanPermission;
-import android.bluetooth.annotations.RequiresLegacyBluetoothAdminPermission;
-import android.bluetooth.annotations.RequiresLegacyBluetoothPermission;
-import android.bluetooth.le.BluetoothLeAdvertiser;
-import android.bluetooth.le.BluetoothLeScanner;
-import android.bluetooth.le.PeriodicAdvertisingManager;
-import android.bluetooth.le.ScanCallback;
-import android.bluetooth.le.ScanFilter;
-import android.bluetooth.le.ScanRecord;
-import android.bluetooth.le.ScanResult;
-import android.bluetooth.le.ScanSettings;
-import android.compat.annotation.UnsupportedAppUsage;
-import android.content.AttributionSource;
-import android.content.Context;
-import android.os.Binder;
-import android.os.Build;
-import android.os.IBinder;
-import android.os.ParcelUuid;
-import android.os.RemoteException;
-import android.os.ResultReceiver;
-import android.os.ServiceManager;
-import android.sysprop.BluetoothProperties;
-import android.util.Log;
-import android.util.Pair;
-
-import com.android.internal.annotations.GuardedBy;
-
-import java.io.IOException;
-import java.lang.annotation.Retention;
-import java.lang.annotation.RetentionPolicy;
-import java.time.Duration;
-import java.util.ArrayList;
-import java.util.Arrays;
-import java.util.Collections;
-import java.util.HashMap;
-import java.util.HashSet;
-import java.util.List;
-import java.util.Locale;
-import java.util.Map;
-import java.util.Objects;
-import java.util.Set;
-import java.util.UUID;
-import java.util.WeakHashMap;
-import java.util.concurrent.Executor;
-import java.util.concurrent.locks.ReentrantReadWriteLock;
-
-/**
- * Represents the local device Bluetooth adapter. The {@link BluetoothAdapter}
- * lets you perform fundamental Bluetooth tasks, such as initiate
- * device discovery, query a list of bonded (paired) devices,
- * instantiate a {@link BluetoothDevice} using a known MAC address, and create
- * a {@link BluetoothServerSocket} to listen for connection requests from other
- * devices, and start a scan for Bluetooth LE devices.
- *
- * <p>To get a {@link BluetoothAdapter} representing the local Bluetooth
- * adapter, call the {@link BluetoothManager#getAdapter} function on {@link BluetoothManager}.
- * On JELLY_BEAN_MR1 and below you will need to use the static {@link #getDefaultAdapter}
- * method instead.
- * </p><p>
- * Fundamentally, this is your starting point for all
- * Bluetooth actions. Once you have the local adapter, you can get a set of
- * {@link BluetoothDevice} objects representing all paired devices with
- * {@link #getBondedDevices()}; start device discovery with
- * {@link #startDiscovery()}; or create a {@link BluetoothServerSocket} to
- * listen for incoming RFComm connection requests with {@link
- * #listenUsingRfcommWithServiceRecord(String, UUID)}; listen for incoming L2CAP Connection-oriented
- * Channels (CoC) connection requests with {@link #listenUsingL2capChannel()}; or start a scan for
- * Bluetooth LE devices with {@link #startLeScan(LeScanCallback callback)}.
- * </p>
- * <p>This class is thread safe.</p>
- * <div class="special reference">
- * <h3>Developer Guides</h3>
- * <p>
- * For more information about using Bluetooth, read the <a href=
- * "{@docRoot}guide/topics/connectivity/bluetooth.html">Bluetooth</a> developer
- * guide.
- * </p>
- * </div>
- *
- * {@see BluetoothDevice}
- * {@see BluetoothServerSocket}
- */
-public final class BluetoothAdapter {
-    private static final String TAG = "BluetoothAdapter";
-    private static final String DESCRIPTOR = "android.bluetooth.BluetoothAdapter";
-    private static final boolean DBG = true;
-    private static final boolean VDBG = false;
-
-    /**
-     * Default MAC address reported to a client that does not have the
-     * android.permission.LOCAL_MAC_ADDRESS permission.
-     *
-     * @hide
-     */
-    public static final String DEFAULT_MAC_ADDRESS = "02:00:00:00:00:00";
-
-    /**
-     * Sentinel error value for this class. Guaranteed to not equal any other
-     * integer constant in this class. Provided as a convenience for functions
-     * that require a sentinel error value, for example:
-     * <p><code>Intent.getIntExtra(BluetoothAdapter.EXTRA_STATE,
-     * BluetoothAdapter.ERROR)</code>
-     */
-    public static final int ERROR = Integer.MIN_VALUE;
-
-    /**
-     * Broadcast Action: The state of the local Bluetooth adapter has been
-     * changed.
-     * <p>For example, Bluetooth has been turned on or off.
-     * <p>Always contains the extra fields {@link #EXTRA_STATE} and {@link
-     * #EXTRA_PREVIOUS_STATE} containing the new and old states
-     * respectively.
-     */
-    @RequiresLegacyBluetoothPermission
-    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) public static final String
-            ACTION_STATE_CHANGED = "android.bluetooth.adapter.action.STATE_CHANGED";
-
-    /**
-     * Used as an int extra field in {@link #ACTION_STATE_CHANGED}
-     * intents to request the current power state. Possible values are:
-     * {@link #STATE_OFF},
-     * {@link #STATE_TURNING_ON},
-     * {@link #STATE_ON},
-     * {@link #STATE_TURNING_OFF},
-     */
-    public static final String EXTRA_STATE = "android.bluetooth.adapter.extra.STATE";
-    /**
-     * Used as an int extra field in {@link #ACTION_STATE_CHANGED}
-     * intents to request the previous power state. Possible values are:
-     * {@link #STATE_OFF},
-     * {@link #STATE_TURNING_ON},
-     * {@link #STATE_ON},
-     * {@link #STATE_TURNING_OFF}
-     */
-    public static final String EXTRA_PREVIOUS_STATE =
-            "android.bluetooth.adapter.extra.PREVIOUS_STATE";
-
-    /** @hide */
-    @IntDef(prefix = { "STATE_" }, value = {
-            STATE_OFF,
-            STATE_TURNING_ON,
-            STATE_ON,
-            STATE_TURNING_OFF,
-            STATE_BLE_TURNING_ON,
-            STATE_BLE_ON,
-            STATE_BLE_TURNING_OFF
-    })
-    @Retention(RetentionPolicy.SOURCE)
-    public @interface AdapterState {}
-
-    /**
-     * Indicates the local Bluetooth adapter is off.
-     */
-    public static final int STATE_OFF = 10;
-    /**
-     * Indicates the local Bluetooth adapter is turning on. However local
-     * clients should wait for {@link #STATE_ON} before attempting to
-     * use the adapter.
-     */
-    public static final int STATE_TURNING_ON = 11;
-    /**
-     * Indicates the local Bluetooth adapter is on, and ready for use.
-     */
-    public static final int STATE_ON = 12;
-    /**
-     * Indicates the local Bluetooth adapter is turning off. Local clients
-     * should immediately attempt graceful disconnection of any remote links.
-     */
-    public static final int STATE_TURNING_OFF = 13;
-
-    /**
-     * Indicates the local Bluetooth adapter is turning Bluetooth LE mode on.
-     *
-     * @hide
-     */
-    public static final int STATE_BLE_TURNING_ON = 14;
-
-    /**
-     * Indicates the local Bluetooth adapter is in LE only mode.
-     *
-     * @hide
-     */
-    public static final int STATE_BLE_ON = 15;
-
-    /**
-     * Indicates the local Bluetooth adapter is turning off LE only mode.
-     *
-     * @hide
-     */
-    public static final int STATE_BLE_TURNING_OFF = 16;
-
-    /**
-     * UUID of the GATT Read Characteristics for LE_PSM value.
-     *
-     * @hide
-     */
-    public static final UUID LE_PSM_CHARACTERISTIC_UUID =
-            UUID.fromString("2d410339-82b6-42aa-b34e-e2e01df8cc1a");
-
-    /**
-     * Human-readable string helper for AdapterState
-     *
-     * @hide
-     */
-    public static String nameForState(@AdapterState int state) {
-        switch (state) {
-            case STATE_OFF:
-                return "OFF";
-            case STATE_TURNING_ON:
-                return "TURNING_ON";
-            case STATE_ON:
-                return "ON";
-            case STATE_TURNING_OFF:
-                return "TURNING_OFF";
-            case STATE_BLE_TURNING_ON:
-                return "BLE_TURNING_ON";
-            case STATE_BLE_ON:
-                return "BLE_ON";
-            case STATE_BLE_TURNING_OFF:
-                return "BLE_TURNING_OFF";
-            default:
-                return "?!?!? (" + state + ")";
-        }
-    }
-
-    /**
-     * Activity Action: Show a system activity that requests discoverable mode.
-     * This activity will also request the user to turn on Bluetooth if it
-     * is not currently enabled.
-     * <p>Discoverable mode is equivalent to {@link
-     * #SCAN_MODE_CONNECTABLE_DISCOVERABLE}. It allows remote devices to see
-     * this Bluetooth adapter when they perform a discovery.
-     * <p>For privacy, Android is not discoverable by default.
-     * <p>The sender of this Intent can optionally use extra field {@link
-     * #EXTRA_DISCOVERABLE_DURATION} to request the duration of
-     * discoverability. Currently the default duration is 120 seconds, and
-     * maximum duration is capped at 300 seconds for each request.
-     * <p>Notification of the result of this activity is posted using the
-     * {@link android.app.Activity#onActivityResult} callback. The
-     * <code>resultCode</code>
-     * will be the duration (in seconds) of discoverability or
-     * {@link android.app.Activity#RESULT_CANCELED} if the user rejected
-     * discoverability or an error has occurred.
-     * <p>Applications can also listen for {@link #ACTION_SCAN_MODE_CHANGED}
-     * for global notification whenever the scan mode changes. For example, an
-     * application can be notified when the device has ended discoverability.
-     */
-    @RequiresLegacyBluetoothPermission
-    @RequiresBluetoothAdvertisePermission
-    @RequiresPermission(android.Manifest.permission.BLUETOOTH_ADVERTISE)
-    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION) public static final String
-            ACTION_REQUEST_DISCOVERABLE = "android.bluetooth.adapter.action.REQUEST_DISCOVERABLE";
-
-    /**
-     * Used as an optional int extra field in {@link
-     * #ACTION_REQUEST_DISCOVERABLE} intents to request a specific duration
-     * for discoverability in seconds. The current default is 120 seconds, and
-     * requests over 300 seconds will be capped. These values could change.
-     */
-    public static final String EXTRA_DISCOVERABLE_DURATION =
-            "android.bluetooth.adapter.extra.DISCOVERABLE_DURATION";
-
-    /**
-     * Activity Action: Show a system activity that allows the user to turn on
-     * Bluetooth.
-     * <p>This system activity will return once Bluetooth has completed turning
-     * on, or the user has decided not to turn Bluetooth on.
-     * <p>Notification of the result of this activity is posted using the
-     * {@link android.app.Activity#onActivityResult} callback. The
-     * <code>resultCode</code>
-     * will be {@link android.app.Activity#RESULT_OK} if Bluetooth has been
-     * turned on or {@link android.app.Activity#RESULT_CANCELED} if the user
-     * has rejected the request or an error has occurred.
-     * <p>Applications can also listen for {@link #ACTION_STATE_CHANGED}
-     * for global notification whenever Bluetooth is turned on or off.
-     */
-    @RequiresLegacyBluetoothPermission
-    @RequiresBluetoothConnectPermission
-    @RequiresPermission(android.Manifest.permission.BLUETOOTH_CONNECT)
-    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION) public static final String
-            ACTION_REQUEST_ENABLE = "android.bluetooth.adapter.action.REQUEST_ENABLE";
-
-    /**
-     * Activity Action: Show a system activity that allows the user to turn off
-     * Bluetooth. This is used only if permission review is enabled which is for
-     * apps targeting API less than 23 require a permission review before any of
-     * the app's components can run.
-     * <p>This system activity will return once Bluetooth has completed turning
-     * off, or the user has decided not to turn Bluetooth off.
-     * <p>Notification of the result of this activity is posted using the
-     * {@link android.app.Activity#onActivityResult} callback. The
-     * <code>resultCode</code>
-     * will be {@link android.app.Activity#RESULT_OK} if Bluetooth has been
-     * turned off or {@link android.app.Activity#RESULT_CANCELED} if the user
-     * has rejected the request or an error has occurred.
-     * <p>Applications can also listen for {@link #ACTION_STATE_CHANGED}
-     * for global notification whenever Bluetooth is turned on or off.
-     *
-     * @hide
-     */
-    @RequiresLegacyBluetoothPermission
-    @RequiresBluetoothConnectPermission
-    @RequiresPermission(android.Manifest.permission.BLUETOOTH_CONNECT)
-    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION) public static final String
-            ACTION_REQUEST_DISABLE = "android.bluetooth.adapter.action.REQUEST_DISABLE";
-
-    /**
-     * Activity Action: Show a system activity that allows user to enable BLE scans even when
-     * Bluetooth is turned off.<p>
-     *
-     * Notification of result of this activity is posted using
-     * {@link android.app.Activity#onActivityResult}. The <code>resultCode</code> will be
-     * {@link android.app.Activity#RESULT_OK} if BLE scan always available setting is turned on or
-     * {@link android.app.Activity#RESULT_CANCELED} if the user has rejected the request or an
-     * error occurred.
-     *
-     * @hide
-     */
-    @SystemApi
-    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
-    public static final String ACTION_REQUEST_BLE_SCAN_ALWAYS_AVAILABLE =
-            "android.bluetooth.adapter.action.REQUEST_BLE_SCAN_ALWAYS_AVAILABLE";
-
-    /**
-     * Broadcast Action: Indicates the Bluetooth scan mode of the local Adapter
-     * has changed.
-     * <p>Always contains the extra fields {@link #EXTRA_SCAN_MODE} and {@link
-     * #EXTRA_PREVIOUS_SCAN_MODE} containing the new and old scan modes
-     * respectively.
-     */
-    @RequiresLegacyBluetoothPermission
-    @RequiresBluetoothScanPermission
-    @RequiresPermission(android.Manifest.permission.BLUETOOTH_SCAN)
-    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) public static final String
-            ACTION_SCAN_MODE_CHANGED = "android.bluetooth.adapter.action.SCAN_MODE_CHANGED";
-
-    /**
-     * Used as an int extra field in {@link #ACTION_SCAN_MODE_CHANGED}
-     * intents to request the current scan mode. Possible values are:
-     * {@link #SCAN_MODE_NONE},
-     * {@link #SCAN_MODE_CONNECTABLE},
-     * {@link #SCAN_MODE_CONNECTABLE_DISCOVERABLE},
-     */
-    public static final String EXTRA_SCAN_MODE = "android.bluetooth.adapter.extra.SCAN_MODE";
-    /**
-     * Used as an int extra field in {@link #ACTION_SCAN_MODE_CHANGED}
-     * intents to request the previous scan mode. Possible values are:
-     * {@link #SCAN_MODE_NONE},
-     * {@link #SCAN_MODE_CONNECTABLE},
-     * {@link #SCAN_MODE_CONNECTABLE_DISCOVERABLE},
-     */
-    public static final String EXTRA_PREVIOUS_SCAN_MODE =
-            "android.bluetooth.adapter.extra.PREVIOUS_SCAN_MODE";
-
-    /** @hide */
-    @IntDef(prefix = { "SCAN_" }, value = {
-            SCAN_MODE_NONE,
-            SCAN_MODE_CONNECTABLE,
-            SCAN_MODE_CONNECTABLE_DISCOVERABLE
-    })
-    @Retention(RetentionPolicy.SOURCE)
-    public @interface ScanMode {}
-
-    /** @hide */
-    @IntDef(value = {
-            BluetoothStatusCodes.SUCCESS,
-            BluetoothStatusCodes.ERROR_UNKNOWN,
-            BluetoothStatusCodes.ERROR_BLUETOOTH_NOT_ENABLED,
-            BluetoothStatusCodes.ERROR_MISSING_BLUETOOTH_SCAN_PERMISSION
-    })
-    @Retention(RetentionPolicy.SOURCE)
-    public @interface ScanModeStatusCode {}
-
-    /**
-     * Indicates that both inquiry scan and page scan are disabled on the local
-     * Bluetooth adapter. Therefore this device is neither discoverable
-     * nor connectable from remote Bluetooth devices.
-     */
-    public static final int SCAN_MODE_NONE = 20;
-    /**
-     * Indicates that inquiry scan is disabled, but page scan is enabled on the
-     * local Bluetooth adapter. Therefore this device is not discoverable from
-     * remote Bluetooth devices, but is connectable from remote devices that
-     * have previously discovered this device.
-     */
-    public static final int SCAN_MODE_CONNECTABLE = 21;
-    /**
-     * Indicates that both inquiry scan and page scan are enabled on the local
-     * Bluetooth adapter. Therefore this device is both discoverable and
-     * connectable from remote Bluetooth devices.
-     */
-    public static final int SCAN_MODE_CONNECTABLE_DISCOVERABLE = 23;
-
-    /**
-     * Device only has a display.
-     *
-     * @hide
-     */
-    public static final int IO_CAPABILITY_OUT = 0;
-
-    /**
-     * Device has a display and the ability to input Yes/No.
-     *
-     * @hide
-     */
-    public static final int IO_CAPABILITY_IO = 1;
-
-    /**
-     * Device only has a keyboard for entry but no display.
-     *
-     * @hide
-     */
-    public static final int IO_CAPABILITY_IN = 2;
-
-    /**
-     * Device has no Input or Output capability.
-     *
-     * @hide
-     */
-    public static final int IO_CAPABILITY_NONE = 3;
-
-    /**
-     * Device has a display and a full keyboard.
-     *
-     * @hide
-     */
-    public static final int IO_CAPABILITY_KBDISP = 4;
-
-    /**
-     * Maximum range value for Input/Output capabilities.
-     *
-     * <p>This should be updated when adding a new Input/Output capability. Other code
-     * like validation depends on this being accurate.
-     *
-     * @hide
-     */
-    public static final int IO_CAPABILITY_MAX = 5;
-
-    /**
-     * The Input/Output capability of the device is unknown.
-     *
-     * @hide
-     */
-    public static final int IO_CAPABILITY_UNKNOWN = 255;
-
-    /** @hide */
-    @IntDef({IO_CAPABILITY_OUT, IO_CAPABILITY_IO, IO_CAPABILITY_IN, IO_CAPABILITY_NONE,
-            IO_CAPABILITY_KBDISP})
-    @Retention(RetentionPolicy.SOURCE)
-    public @interface IoCapability {}
-
-    /** @hide */
-    @IntDef(prefix = "ACTIVE_DEVICE_", value = {ACTIVE_DEVICE_AUDIO,
-            ACTIVE_DEVICE_PHONE_CALL, ACTIVE_DEVICE_ALL})
-    @Retention(RetentionPolicy.SOURCE)
-    public @interface ActiveDeviceUse {}
-
-    /**
-     * Use the specified device for audio (a2dp and hearing aid profile)
-     *
-     * @hide
-     */
-    @SystemApi
-    public static final int ACTIVE_DEVICE_AUDIO = 0;
-
-    /**
-     * Use the specified device for phone calls (headset profile and hearing
-     * aid profile)
-     *
-     * @hide
-     */
-    @SystemApi
-    public static final int ACTIVE_DEVICE_PHONE_CALL = 1;
-
-    /**
-     * Use the specified device for a2dp, hearing aid profile, and headset profile
-     *
-     * @hide
-     */
-    @SystemApi
-    public static final int ACTIVE_DEVICE_ALL = 2;
-
-    /** @hide */
-    @IntDef({BluetoothProfile.HEADSET, BluetoothProfile.A2DP,
-            BluetoothProfile.HEARING_AID})
-    @Retention(RetentionPolicy.SOURCE)
-    public @interface ActiveDeviceProfile {}
-
-    /**
-     * Broadcast Action: The local Bluetooth adapter has started the remote
-     * device discovery process.
-     * <p>This usually involves an inquiry scan of about 12 seconds, followed
-     * by a page scan of each new device to retrieve its Bluetooth name.
-     * <p>Register for {@link BluetoothDevice#ACTION_FOUND} to be notified as
-     * remote Bluetooth devices are found.
-     * <p>Device discovery is a heavyweight procedure. New connections to
-     * remote Bluetooth devices should not be attempted while discovery is in
-     * progress, and existing connections will experience limited bandwidth
-     * and high latency. Use {@link #cancelDiscovery()} to cancel an ongoing
-     * discovery.
-     */
-    @RequiresLegacyBluetoothPermission
-    @RequiresBluetoothScanPermission
-    @RequiresPermission(android.Manifest.permission.BLUETOOTH_SCAN)
-    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) public static final String
-            ACTION_DISCOVERY_STARTED = "android.bluetooth.adapter.action.DISCOVERY_STARTED";
-    /**
-     * Broadcast Action: The local Bluetooth adapter has finished the device
-     * discovery process.
-     */
-    @RequiresLegacyBluetoothPermission
-    @RequiresBluetoothScanPermission
-    @RequiresPermission(android.Manifest.permission.BLUETOOTH_SCAN)
-    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) public static final String
-            ACTION_DISCOVERY_FINISHED = "android.bluetooth.adapter.action.DISCOVERY_FINISHED";
-
-    /**
-     * Broadcast Action: The local Bluetooth adapter has changed its friendly
-     * Bluetooth name.
-     * <p>This name is visible to remote Bluetooth devices.
-     * <p>Always contains the extra field {@link #EXTRA_LOCAL_NAME} containing
-     * the name.
-     */
-    @RequiresLegacyBluetoothPermission
-    @RequiresBluetoothConnectPermission
-    @RequiresPermission(android.Manifest.permission.BLUETOOTH_CONNECT)
-    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) public static final String
-            ACTION_LOCAL_NAME_CHANGED = "android.bluetooth.adapter.action.LOCAL_NAME_CHANGED";
-    /**
-     * Used as a String extra field in {@link #ACTION_LOCAL_NAME_CHANGED}
-     * intents to request the local Bluetooth name.
-     */
-    public static final String EXTRA_LOCAL_NAME = "android.bluetooth.adapter.extra.LOCAL_NAME";
-
-    /**
-     * Intent used to broadcast the change in connection state of the local
-     * Bluetooth adapter to a profile of the remote device. When the adapter is
-     * not connected to any profiles of any remote devices and it attempts a
-     * connection to a profile this intent will be sent. Once connected, this intent
-     * will not be sent for any more connection attempts to any profiles of any
-     * remote device. When the adapter disconnects from the last profile its
-     * connected to of any remote device, this intent will be sent.
-     *
-     * <p> This intent is useful for applications that are only concerned about
-     * whether the local adapter is connected to any profile of any device and
-     * are not really concerned about which profile. For example, an application
-     * which displays an icon to display whether Bluetooth is connected or not
-     * can use this intent.
-     *
-     * <p>This intent will have 3 extras:
-     * {@link #EXTRA_CONNECTION_STATE} - The current connection state.
-     * {@link #EXTRA_PREVIOUS_CONNECTION_STATE}- The previous connection state.
-     * {@link BluetoothDevice#EXTRA_DEVICE} - The remote device.
-     *
-     * {@link #EXTRA_CONNECTION_STATE} or {@link #EXTRA_PREVIOUS_CONNECTION_STATE}
-     * can be any of {@link #STATE_DISCONNECTED}, {@link #STATE_CONNECTING},
-     * {@link #STATE_CONNECTED}, {@link #STATE_DISCONNECTING}.
-     */
-    @RequiresLegacyBluetoothPermission
-    @RequiresBluetoothConnectPermission
-    @RequiresPermission(android.Manifest.permission.BLUETOOTH_CONNECT)
-    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) public static final String
-            ACTION_CONNECTION_STATE_CHANGED =
-            "android.bluetooth.adapter.action.CONNECTION_STATE_CHANGED";
-
-    /**
-     * Extra used by {@link #ACTION_CONNECTION_STATE_CHANGED}
-     *
-     * This extra represents the current connection state.
-     */
-    public static final String EXTRA_CONNECTION_STATE =
-            "android.bluetooth.adapter.extra.CONNECTION_STATE";
-
-    /**
-     * Extra used by {@link #ACTION_CONNECTION_STATE_CHANGED}
-     *
-     * This extra represents the previous connection state.
-     */
-    public static final String EXTRA_PREVIOUS_CONNECTION_STATE =
-            "android.bluetooth.adapter.extra.PREVIOUS_CONNECTION_STATE";
-
-    /**
-     * Broadcast Action: The Bluetooth adapter state has changed in LE only mode.
-     *
-     * @hide
-     */
-    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
-    @SystemApi public static final String ACTION_BLE_STATE_CHANGED =
-            "android.bluetooth.adapter.action.BLE_STATE_CHANGED";
-
-    /**
-     * Intent used to broadcast the change in the Bluetooth address
-     * of the local Bluetooth adapter.
-     * <p>Always contains the extra field {@link
-     * #EXTRA_BLUETOOTH_ADDRESS} containing the Bluetooth address.
-     *
-     * Note: only system level processes are allowed to send this
-     * defined broadcast.
-     *
-     * @hide
-     */
-    @RequiresBluetoothConnectPermission
-    @RequiresPermission(android.Manifest.permission.BLUETOOTH_CONNECT)
-    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
-    public static final String ACTION_BLUETOOTH_ADDRESS_CHANGED =
-            "android.bluetooth.adapter.action.BLUETOOTH_ADDRESS_CHANGED";
-
-    /**
-     * Used as a String extra field in {@link
-     * #ACTION_BLUETOOTH_ADDRESS_CHANGED} intent to store the local
-     * Bluetooth address.
-     *
-     * @hide
-     */
-    public static final String EXTRA_BLUETOOTH_ADDRESS =
-            "android.bluetooth.adapter.extra.BLUETOOTH_ADDRESS";
-
-    /**
-     * Broadcast Action: The notifys Bluetooth ACL connected event. This will be
-     * by BLE Always on enabled application to know the ACL_CONNECTED event
-     * when Bluetooth state in STATE_BLE_ON. This denotes GATT connection
-     * as Bluetooth LE is the only feature available in STATE_BLE_ON
-     *
-     * This is counterpart of {@link BluetoothDevice#ACTION_ACL_CONNECTED} which
-     * works in Bluetooth state STATE_ON
-     *
-     * @hide
-     */
-    @RequiresBluetoothConnectPermission
-    @RequiresPermission(android.Manifest.permission.BLUETOOTH_CONNECT)
-    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
-    public static final String ACTION_BLE_ACL_CONNECTED =
-            "android.bluetooth.adapter.action.BLE_ACL_CONNECTED";
-
-    /**
-     * Broadcast Action: The notifys Bluetooth ACL connected event. This will be
-     * by BLE Always on enabled application to know the ACL_DISCONNECTED event
-     * when Bluetooth state in STATE_BLE_ON. This denotes GATT disconnection as Bluetooth
-     * LE is the only feature available in STATE_BLE_ON
-     *
-     * This is counterpart of {@link BluetoothDevice#ACTION_ACL_DISCONNECTED} which
-     * works in Bluetooth state STATE_ON
-     *
-     * @hide
-     */
-    @RequiresBluetoothConnectPermission
-    @RequiresPermission(android.Manifest.permission.BLUETOOTH_CONNECT)
-    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
-    public static final String ACTION_BLE_ACL_DISCONNECTED =
-            "android.bluetooth.adapter.action.BLE_ACL_DISCONNECTED";
-
-    /** The profile is in disconnected state */
-    public static final int STATE_DISCONNECTED =
-            0; //BluetoothProtoEnums.CONNECTION_STATE_DISCONNECTED;
-    /** The profile is in connecting state */
-    public static final int STATE_CONNECTING = 1; //BluetoothProtoEnums.CONNECTION_STATE_CONNECTING;
-    /** The profile is in connected state */
-    public static final int STATE_CONNECTED = 2; //BluetoothProtoEnums.CONNECTION_STATE_CONNECTED;
-    /** The profile is in disconnecting state */
-    public static final int STATE_DISCONNECTING =
-            3; //BluetoothProtoEnums.CONNECTION_STATE_DISCONNECTING;
-
-    /** @hide */
-    public static final String BLUETOOTH_MANAGER_SERVICE = "bluetooth_manager";
-    private final IBinder mToken;
-
-
-    /**
-     * When creating a ServerSocket using listenUsingRfcommOn() or
-     * listenUsingL2capOn() use SOCKET_CHANNEL_AUTO_STATIC to create
-     * a ServerSocket that auto assigns a channel number to the first
-     * bluetooth socket.
-     * The channel number assigned to this first Bluetooth Socket will
-     * be stored in the ServerSocket, and reused for subsequent Bluetooth
-     * sockets.
-     *
-     * @hide
-     */
-    public static final int SOCKET_CHANNEL_AUTO_STATIC_NO_SDP = -2;
-
-
-    private static final int ADDRESS_LENGTH = 17;
-
-    /**
-     * Lazily initialized singleton. Guaranteed final after first object
-     * constructed.
-     */
-    private static BluetoothAdapter sAdapter;
-
-    private BluetoothLeScanner mBluetoothLeScanner;
-    private BluetoothLeAdvertiser mBluetoothLeAdvertiser;
-    private PeriodicAdvertisingManager mPeriodicAdvertisingManager;
-
-    private final IBluetoothManager mManagerService;
-    private final AttributionSource mAttributionSource;
-
-    // Yeah, keeping both mService and sService isn't pretty, but it's too late
-    // in the current release for a major refactoring, so we leave them both
-    // intact until this can be cleaned up in a future release
-
-    @UnsupportedAppUsage
-    @GuardedBy("mServiceLock")
-    private IBluetooth mService;
-    private final ReentrantReadWriteLock mServiceLock = new ReentrantReadWriteLock();
-
-    @GuardedBy("sServiceLock")
-    private static boolean sServiceRegistered;
-    @GuardedBy("sServiceLock")
-    private static IBluetooth sService;
-    private static final Object sServiceLock = new Object();
-
-    private final Object mLock = new Object();
-    private final Map<LeScanCallback, ScanCallback> mLeScanClients;
-    private final Map<BluetoothDevice, List<Pair<OnMetadataChangedListener, Executor>>>
-                mMetadataListeners = new HashMap<>();
-    private final Map<BluetoothConnectionCallback, Executor>
-            mBluetoothConnectionCallbackExecutorMap = new HashMap<>();
-
-    /**
-     * Bluetooth metadata listener. Overrides the default BluetoothMetadataListener
-     * implementation.
-     */
-    @SuppressLint("AndroidFrameworkBluetoothPermission")
-    private final IBluetoothMetadataListener mBluetoothMetadataListener =
-            new IBluetoothMetadataListener.Stub() {
-        @Override
-        public void onMetadataChanged(BluetoothDevice device, int key, byte[] value) {
-            Attributable.setAttributionSource(device, mAttributionSource);
-            synchronized (mMetadataListeners) {
-                if (mMetadataListeners.containsKey(device)) {
-                    List<Pair<OnMetadataChangedListener, Executor>> list =
-                            mMetadataListeners.get(device);
-                    for (Pair<OnMetadataChangedListener, Executor> pair : list) {
-                        OnMetadataChangedListener listener = pair.first;
-                        Executor executor = pair.second;
-                        executor.execute(() -> {
-                            listener.onMetadataChanged(device, key, value);
-                        });
-                    }
-                }
-            }
-            return;
-        }
-    };
-
-    /**
-     * Get a handle to the default local Bluetooth adapter.
-     * <p>
-     * Currently Android only supports one Bluetooth adapter, but the API could
-     * be extended to support more. This will always return the default adapter.
-     * </p>
-     *
-     * @return the default local adapter, or null if Bluetooth is not supported
-     *         on this hardware platform
-     * @deprecated this method will continue to work, but developers are
-     *             strongly encouraged to migrate to using
-     *             {@link BluetoothManager#getAdapter()}, since that approach
-     *             enables support for {@link Context#createAttributionContext}.
-     */
-    @Deprecated
-    @RequiresNoPermission
-    public static synchronized BluetoothAdapter getDefaultAdapter() {
-        if (sAdapter == null) {
-            sAdapter = createAdapter(AttributionSource.myAttributionSource());
-        }
-        return sAdapter;
-    }
-
-    /** {@hide} */
-    public static BluetoothAdapter createAdapter(AttributionSource attributionSource) {
-        IBinder binder = ServiceManager.getService(BLUETOOTH_MANAGER_SERVICE);
-        if (binder != null) {
-            return new BluetoothAdapter(IBluetoothManager.Stub.asInterface(binder),
-                    attributionSource);
-        } else {
-            Log.e(TAG, "Bluetooth binder is null");
-            return null;
-        }
-    }
-
-    /**
-     * Use {@link #getDefaultAdapter} to get the BluetoothAdapter instance.
-     */
-    BluetoothAdapter(IBluetoothManager managerService, AttributionSource attributionSource) {
-        mManagerService = Objects.requireNonNull(managerService);
-        mAttributionSource = Objects.requireNonNull(attributionSource);
-        synchronized (mServiceLock.writeLock()) {
-            mService = getBluetoothService(mManagerCallback);
-        }
-        mLeScanClients = new HashMap<LeScanCallback, ScanCallback>();
-        mToken = new Binder(DESCRIPTOR);
-    }
-
-    /**
-     * Get a {@link BluetoothDevice} object for the given Bluetooth hardware
-     * address.
-     * <p>Valid Bluetooth hardware addresses must be upper case, in a format
-     * such as "00:11:22:33:AA:BB". The helper {@link #checkBluetoothAddress} is
-     * available to validate a Bluetooth address.
-     * <p>A {@link BluetoothDevice} will always be returned for a valid
-     * hardware address, even if this adapter has never seen that device.
-     *
-     * @param address valid Bluetooth MAC address
-     * @throws IllegalArgumentException if address is invalid
-     */
-    @RequiresNoPermission
-    public BluetoothDevice getRemoteDevice(String address) {
-        final BluetoothDevice res = new BluetoothDevice(address);
-        res.setAttributionSource(mAttributionSource);
-        return res;
-    }
-
-    /**
-     * Get a {@link BluetoothDevice} object for the given Bluetooth hardware
-     * address.
-     * <p>Valid Bluetooth hardware addresses must be 6 bytes. This method
-     * expects the address in network byte order (MSB first).
-     * <p>A {@link BluetoothDevice} will always be returned for a valid
-     * hardware address, even if this adapter has never seen that device.
-     *
-     * @param address Bluetooth MAC address (6 bytes)
-     * @throws IllegalArgumentException if address is invalid
-     */
-    @RequiresNoPermission
-    public BluetoothDevice getRemoteDevice(byte[] address) {
-        if (address == null || address.length != 6) {
-            throw new IllegalArgumentException("Bluetooth address must have 6 bytes");
-        }
-        final BluetoothDevice res = new BluetoothDevice(
-                String.format(Locale.US, "%02X:%02X:%02X:%02X:%02X:%02X", address[0], address[1],
-                        address[2], address[3], address[4], address[5]));
-        res.setAttributionSource(mAttributionSource);
-        return res;
-    }
-
-    /**
-     * Returns a {@link BluetoothLeAdvertiser} object for Bluetooth LE Advertising operations.
-     * Will return null if Bluetooth is turned off or if Bluetooth LE Advertising is not
-     * supported on this device.
-     * <p>
-     * Use {@link #isMultipleAdvertisementSupported()} to check whether LE Advertising is supported
-     * on this device before calling this method.
-     */
-    @RequiresNoPermission
-    public BluetoothLeAdvertiser getBluetoothLeAdvertiser() {
-        if (!getLeAccess()) {
-            return null;
-        }
-        synchronized (mLock) {
-            if (mBluetoothLeAdvertiser == null) {
-                mBluetoothLeAdvertiser = new BluetoothLeAdvertiser(this);
-            }
-            return mBluetoothLeAdvertiser;
-        }
-    }
-
-    /**
-     * Returns a {@link PeriodicAdvertisingManager} object for Bluetooth LE Periodic Advertising
-     * operations. Will return null if Bluetooth is turned off or if Bluetooth LE Periodic
-     * Advertising is not supported on this device.
-     * <p>
-     * Use {@link #isLePeriodicAdvertisingSupported()} to check whether LE Periodic Advertising is
-     * supported on this device before calling this method.
-     *
-     * @hide
-     */
-    @RequiresNoPermission
-    public PeriodicAdvertisingManager getPeriodicAdvertisingManager() {
-        if (!getLeAccess()) {
-            return null;
-        }
-
-        if (!isLePeriodicAdvertisingSupported()) {
-            return null;
-        }
-
-        synchronized (mLock) {
-            if (mPeriodicAdvertisingManager == null) {
-                mPeriodicAdvertisingManager = new PeriodicAdvertisingManager(this);
-            }
-            return mPeriodicAdvertisingManager;
-        }
-    }
-
-    /**
-     * Returns a {@link BluetoothLeScanner} object for Bluetooth LE scan operations.
-     */
-    @RequiresNoPermission
-    public BluetoothLeScanner getBluetoothLeScanner() {
-        if (!getLeAccess()) {
-            return null;
-        }
-        synchronized (mLock) {
-            if (mBluetoothLeScanner == null) {
-                mBluetoothLeScanner = new BluetoothLeScanner(this);
-            }
-            return mBluetoothLeScanner;
-        }
-    }
-
-    /**
-     * Return true if Bluetooth is currently enabled and ready for use.
-     * <p>Equivalent to:
-     * <code>getBluetoothState() == STATE_ON</code>
-     *
-     * @return true if the local adapter is turned on
-     */
-    @RequiresLegacyBluetoothPermission
-    @RequiresNoPermission
-    public boolean isEnabled() {
-        return getState() == BluetoothAdapter.STATE_ON;
-    }
-
-    /**
-     * Return true if Bluetooth LE(Always BLE On feature) is currently
-     * enabled and ready for use
-     * <p>This returns true if current state is either STATE_ON or STATE_BLE_ON
-     *
-     * @return true if the local Bluetooth LE adapter is turned on
-     * @hide
-     */
-    @SystemApi
-    @RequiresNoPermission
-    public boolean isLeEnabled() {
-        final int state = getLeState();
-        if (DBG) {
-            Log.d(TAG, "isLeEnabled(): " + BluetoothAdapter.nameForState(state));
-        }
-        return (state == BluetoothAdapter.STATE_ON
-                || state == BluetoothAdapter.STATE_BLE_ON
-                || state == BluetoothAdapter.STATE_TURNING_ON
-                || state == BluetoothAdapter.STATE_TURNING_OFF);
-    }
-
-    /**
-     * Turns off Bluetooth LE which was earlier turned on by calling enableBLE().
-     *
-     * <p> If the internal Adapter state is STATE_BLE_ON, this would trigger the transition
-     * to STATE_OFF and completely shut-down Bluetooth
-     *
-     * <p> If the Adapter state is STATE_ON, This would unregister the existance of
-     * special Bluetooth LE application and hence the further turning off of Bluetooth
-     * from UI would ensure the complete turn-off of Bluetooth rather than staying back
-     * BLE only state
-     *
-     * <p>This is an asynchronous call: it will return immediately, and
-     * clients should listen for {@link #ACTION_BLE_STATE_CHANGED}
-     * to be notified of subsequent adapter state changes If this call returns
-     * true, then the adapter state will immediately transition from {@link
-     * #STATE_ON} to {@link #STATE_TURNING_OFF}, and some time
-     * later transition to either {@link #STATE_BLE_ON} or {@link
-     * #STATE_OFF} based on the existance of the further Always BLE ON enabled applications
-     * If this call returns false then there was an
-     * immediate problem that will prevent the QAdapter from being turned off -
-     * such as the QAadapter already being turned off.
-     *
-     * @return true to indicate success, or false on immediate error
-     * @hide
-     */
-    @SystemApi
-    @RequiresBluetoothConnectPermission
-    @RequiresPermission(android.Manifest.permission.BLUETOOTH_CONNECT)
-    public boolean disableBLE() {
-        if (!isBleScanAlwaysAvailable()) {
-            return false;
-        }
-        try {
-            return mManagerService.disableBle(mAttributionSource, mToken);
-        } catch (RemoteException e) {
-            Log.e(TAG, "", e);
-        }
-        return false;
-    }
-
-    /**
-     * Applications who want to only use Bluetooth Low Energy (BLE) can call enableBLE.
-     *
-     * enableBLE registers the existence of an app using only LE functions.
-     *
-     * enableBLE may enable Bluetooth to an LE only mode so that an app can use
-     * LE related features (BluetoothGatt or BluetoothGattServer classes)
-     *
-     * If the user disables Bluetooth while an app is registered to use LE only features,
-     * Bluetooth will remain on in LE only mode for the app.
-     *
-     * When Bluetooth is in LE only mode, it is not shown as ON to the UI.
-     *
-     * <p>This is an asynchronous call: it returns immediately, and
-     * clients should listen for {@link #ACTION_BLE_STATE_CHANGED}
-     * to be notified of adapter state changes.
-     *
-     * If this call returns * true, then the adapter state is either in a mode where
-     * LE is available, or will transition from {@link #STATE_OFF} to {@link #STATE_BLE_TURNING_ON},
-     * and some time later transition to either {@link #STATE_OFF} or {@link #STATE_BLE_ON}.
-     *
-     * If this call returns false then there was an immediate problem that prevents the
-     * adapter from being turned on - such as Airplane mode.
-     *
-     * {@link #ACTION_BLE_STATE_CHANGED} returns the Bluetooth Adapter's various
-     * states, It includes all the classic Bluetooth Adapter states along with
-     * internal BLE only states
-     *
-     * @return true to indicate Bluetooth LE will be available, or false on immediate error
-     * @hide
-     */
-    @SystemApi
-    @RequiresBluetoothConnectPermission
-    @RequiresPermission(android.Manifest.permission.BLUETOOTH_CONNECT)
-    public boolean enableBLE() {
-        if (!isBleScanAlwaysAvailable()) {
-            return false;
-        }
-        try {
-            return mManagerService.enableBle(mAttributionSource, mToken);
-        } catch (RemoteException e) {
-            Log.e(TAG, "", e);
-        }
-
-        return false;
-    }
-
-    /*
-    private static final String BLUETOOTH_GET_STATE_CACHE_PROPERTY = "cache_key.bluetooth.get_state";
-
-    private final PropertyInvalidatedCache<Void, Integer> mBluetoothGetStateCache =
-            new PropertyInvalidatedCache<Void, Integer>(
-                8, BLUETOOTH_GET_STATE_CACHE_PROPERTY) {
-                @Override
-                @SuppressLint("AndroidFrameworkRequiresPermission")
-                public Integer recompute(Void query) {
-                    try {
-                        return mService.getState();
-                    } catch (RemoteException e) {
-                        throw e.rethrowFromSystemServer();
-                    }
-                }
-            };
-     */
-
-    /** @hide */
-    /*
-    @RequiresNoPermission
-    public void disableBluetoothGetStateCache() {
-        mBluetoothGetStateCache.disableLocal();
-    }
-     */
-
-    /** @hide */
-    /*
-    public static void invalidateBluetoothGetStateCache() {
-        PropertyInvalidatedCache.invalidateCache(BLUETOOTH_GET_STATE_CACHE_PROPERTY);
-    }
-     */
-
-    /**
-     * Fetch the current bluetooth state.  If the service is down, return
-     * OFF.
-     */
-    @AdapterState
-    private int getStateInternal() {
-        int state = BluetoothAdapter.STATE_OFF;
-        try {
-            mServiceLock.readLock().lock();
-            if (mService != null) {
-                //state = mBluetoothGetStateCache.query(null);
-                state = mService.getState();
-            }
-        } catch (RemoteException e) {
-            Log.e(TAG, "", e);
-            e.rethrowFromSystemServer();
-        } finally {
-            mServiceLock.readLock().unlock();
-        }
-        return state;
-    }
-
-    /**
-     * Get the current state of the local Bluetooth adapter.
-     * <p>Possible return values are
-     * {@link #STATE_OFF},
-     * {@link #STATE_TURNING_ON},
-     * {@link #STATE_ON},
-     * {@link #STATE_TURNING_OFF}.
-     *
-     * @return current state of Bluetooth adapter
-     */
-    @RequiresLegacyBluetoothPermission
-    @RequiresNoPermission
-    @AdapterState
-    public int getState() {
-        int state = getStateInternal();
-
-        // Consider all internal states as OFF
-        if (state == BluetoothAdapter.STATE_BLE_ON || state == BluetoothAdapter.STATE_BLE_TURNING_ON
-                || state == BluetoothAdapter.STATE_BLE_TURNING_OFF) {
-            if (VDBG) {
-                Log.d(TAG, "Consider " + BluetoothAdapter.nameForState(state) + " state as OFF");
-            }
-            state = BluetoothAdapter.STATE_OFF;
-        }
-        if (VDBG) {
-            Log.d(TAG, "" + hashCode() + ": getState(). Returning " + BluetoothAdapter.nameForState(
-                    state));
-        }
-        return state;
-    }
-
-    /**
-     * Get the current state of the local Bluetooth adapter
-     * <p>This returns current internal state of Adapter including LE ON/OFF
-     *
-     * <p>Possible return values are
-     * {@link #STATE_OFF},
-     * {@link #STATE_BLE_TURNING_ON},
-     * {@link #STATE_BLE_ON},
-     * {@link #STATE_TURNING_ON},
-     * {@link #STATE_ON},
-     * {@link #STATE_TURNING_OFF},
-     * {@link #STATE_BLE_TURNING_OFF}.
-     *
-     * @return current state of Bluetooth adapter
-     * @hide
-     */
-    @RequiresLegacyBluetoothPermission
-    @RequiresNoPermission
-    @AdapterState
-    @UnsupportedAppUsage(publicAlternatives = "Use {@link #getState()} instead to determine "
-            + "whether you can use BLE & BT classic.")
-    public int getLeState() {
-        int state = getStateInternal();
-
-        if (VDBG) {
-            Log.d(TAG, "getLeState() returning " + BluetoothAdapter.nameForState(state));
-        }
-        return state;
-    }
-
-    boolean getLeAccess() {
-        if (getLeState() == STATE_ON) {
-            return true;
-        } else if (getLeState() == STATE_BLE_ON) {
-            return true; // TODO: FILTER SYSTEM APPS HERE <--
-        }
-
-        return false;
-    }
-
-    /**
-     * Turn on the local Bluetooth adapter&mdash;do not use without explicit
-     * user action to turn on Bluetooth.
-     * <p>This powers on the underlying Bluetooth hardware, and starts all
-     * Bluetooth system services.
-     * <p class="caution"><strong>Bluetooth should never be enabled without
-     * direct user consent</strong>. If you want to turn on Bluetooth in order
-     * to create a wireless connection, you should use the {@link
-     * #ACTION_REQUEST_ENABLE} Intent, which will raise a dialog that requests
-     * user permission to turn on Bluetooth. The {@link #enable()} method is
-     * provided only for applications that include a user interface for changing
-     * system settings, such as a "power manager" app.</p>
-     * <p>This is an asynchronous call: it will return immediately, and
-     * clients should listen for {@link #ACTION_STATE_CHANGED}
-     * to be notified of subsequent adapter state changes. If this call returns
-     * true, then the adapter state will immediately transition from {@link
-     * #STATE_OFF} to {@link #STATE_TURNING_ON}, and some time
-     * later transition to either {@link #STATE_OFF} or {@link
-     * #STATE_ON}. If this call returns false then there was an
-     * immediate problem that will prevent the adapter from being turned on -
-     * such as Airplane mode, or the adapter is already turned on.
-     *
-     * @return true to indicate adapter startup has begun, or false on immediate error
-     */
-    @RequiresLegacyBluetoothAdminPermission
-    @RequiresBluetoothConnectPermission
-    @RequiresPermission(android.Manifest.permission.BLUETOOTH_CONNECT)
-    public boolean enable() {
-        if (isEnabled()) {
-            if (DBG) {
-                Log.d(TAG, "enable(): BT already enabled!");
-            }
-            return true;
-        }
-        try {
-            return mManagerService.enable(mAttributionSource);
-        } catch (RemoteException e) {
-            Log.e(TAG, "", e);
-        }
-        return false;
-    }
-
-    /**
-     * Turn off the local Bluetooth adapter&mdash;do not use without explicit
-     * user action to turn off Bluetooth.
-     * <p>This gracefully shuts down all Bluetooth connections, stops Bluetooth
-     * system services, and powers down the underlying Bluetooth hardware.
-     * <p class="caution"><strong>Bluetooth should never be disabled without
-     * direct user consent</strong>. The {@link #disable()} method is
-     * provided only for applications that include a user interface for changing
-     * system settings, such as a "power manager" app.</p>
-     * <p>This is an asynchronous call: it will return immediately, and
-     * clients should listen for {@link #ACTION_STATE_CHANGED}
-     * to be notified of subsequent adapter state changes. If this call returns
-     * true, then the adapter state will immediately transition from {@link
-     * #STATE_ON} to {@link #STATE_TURNING_OFF}, and some time
-     * later transition to either {@link #STATE_OFF} or {@link
-     * #STATE_ON}. If this call returns false then there was an
-     * immediate problem that will prevent the adapter from being turned off -
-     * such as the adapter already being turned off.
-     *
-     * @return true to indicate adapter shutdown has begun, or false on immediate error
-     */
-    @RequiresLegacyBluetoothAdminPermission
-    @RequiresBluetoothConnectPermission
-    @RequiresPermission(android.Manifest.permission.BLUETOOTH_CONNECT)
-    public boolean disable() {
-        try {
-            return mManagerService.disable(mAttributionSource, true);
-        } catch (RemoteException e) {
-            Log.e(TAG, "", e);
-        }
-        return false;
-    }
-
-    /**
-     * Turn off the local Bluetooth adapter and don't persist the setting.
-     *
-     * @param persist Indicate whether the off state should be persisted following the next reboot
-     * @return true to indicate adapter shutdown has begun, or false on immediate error
-     * @hide
-     */
-    @SystemApi
-    @RequiresLegacyBluetoothAdminPermission
-    @RequiresBluetoothConnectPermission
-    @RequiresPermission(allOf = {
-            android.Manifest.permission.BLUETOOTH_CONNECT,
-            android.Manifest.permission.BLUETOOTH_PRIVILEGED,
-    })
-    public boolean disable(boolean persist) {
-
-        try {
-            return mManagerService.disable(mAttributionSource, persist);
-        } catch (RemoteException e) {
-            Log.e(TAG, "", e);
-        }
-        return false;
-    }
-
-    /**
-     * Returns the hardware address of the local Bluetooth adapter.
-     * <p>For example, "00:11:22:AA:BB:CC".
-     *
-     * @return Bluetooth hardware address as string
-     */
-    @RequiresLegacyBluetoothPermission
-    @RequiresBluetoothConnectPermission
-    @RequiresPermission(allOf = {
-            android.Manifest.permission.BLUETOOTH_CONNECT,
-            android.Manifest.permission.LOCAL_MAC_ADDRESS,
-    })
-    public String getAddress() {
-        try {
-            return mManagerService.getAddress(mAttributionSource);
-        } catch (RemoteException e) {
-            Log.e(TAG, "", e);
-        }
-        return null;
-    }
-
-    /**
-     * Get the friendly Bluetooth name of the local Bluetooth adapter.
-     * <p>This name is visible to remote Bluetooth devices.
-     *
-     * @return the Bluetooth name, or null on error
-     */
-    @RequiresLegacyBluetoothPermission
-    @RequiresBluetoothConnectPermission
-    @RequiresPermission(android.Manifest.permission.BLUETOOTH_CONNECT)
-    public String getName() {
-        try {
-            return mManagerService.getName(mAttributionSource);
-        } catch (RemoteException e) {
-            Log.e(TAG, "", e);
-        }
-        return null;
-    }
-
-    /** {@hide} */
-    @RequiresBluetoothAdvertisePermission
-    @RequiresPermission(android.Manifest.permission.BLUETOOTH_ADVERTISE)
-    public int getNameLengthForAdvertise() {
-        try {
-            return mService.getNameLengthForAdvertise(mAttributionSource);
-        } catch (RemoteException e) {
-            Log.e(TAG, "", e);
-        }
-        return -1;
-    }
-
-    /**
-     * Factory reset bluetooth settings.
-     *
-     * @return true to indicate that the config file was successfully cleared
-     * @hide
-     */
-    @UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.R, trackingBug = 170729553)
-    @RequiresBluetoothConnectPermission
-    @RequiresPermission(allOf = {
-            android.Manifest.permission.BLUETOOTH_CONNECT,
-            android.Manifest.permission.BLUETOOTH_PRIVILEGED,
-    })
-    public boolean factoryReset() {
-        try {
-            mServiceLock.readLock().lock();
-            if (mService != null && mService.factoryReset(mAttributionSource)
-                    && mManagerService != null
-                    && mManagerService.onFactoryReset(mAttributionSource)) {
-                return true;
-            }
-            Log.e(TAG, "factoryReset(): Setting persist.bluetooth.factoryreset to retry later");
-            BluetoothProperties.factory_reset(true);
-        } catch (RemoteException e) {
-            Log.e(TAG, "", e);
-        } finally {
-            mServiceLock.readLock().unlock();
-        }
-        return false;
-    }
-
-    /**
-     * Get the UUIDs supported by the local Bluetooth adapter.
-     *
-     * @return the UUIDs supported by the local Bluetooth Adapter.
-     * @hide
-     */
-    @UnsupportedAppUsage
-    @RequiresLegacyBluetoothPermission
-    @RequiresBluetoothConnectPermission
-    @RequiresPermission(android.Manifest.permission.BLUETOOTH_CONNECT)
-    public @Nullable ParcelUuid[] getUuids() {
-        if (getState() != STATE_ON) {
-            return null;
-        }
-        try {
-            mServiceLock.readLock().lock();
-            if (mService != null) {
-                return mService.getUuids(mAttributionSource);
-            }
-        } catch (RemoteException e) {
-            Log.e(TAG, "", e);
-        } finally {
-            mServiceLock.readLock().unlock();
-        }
-        return null;
-    }
-
-    /**
-     * Set the friendly Bluetooth name of the local Bluetooth adapter.
-     * <p>This name is visible to remote Bluetooth devices.
-     * <p>Valid Bluetooth names are a maximum of 248 bytes using UTF-8
-     * encoding, although many remote devices can only display the first
-     * 40 characters, and some may be limited to just 20.
-     * <p>If Bluetooth state is not {@link #STATE_ON}, this API
-     * will return false. After turning on Bluetooth,
-     * wait for {@link #ACTION_STATE_CHANGED} with {@link #STATE_ON}
-     * to get the updated value.
-     *
-     * @param name a valid Bluetooth name
-     * @return true if the name was set, false otherwise
-     */
-    @RequiresLegacyBluetoothAdminPermission
-    @RequiresBluetoothConnectPermission
-    @RequiresPermission(android.Manifest.permission.BLUETOOTH_CONNECT)
-    public boolean setName(String name) {
-        if (getState() != STATE_ON) {
-            return false;
-        }
-        try {
-            mServiceLock.readLock().lock();
-            if (mService != null) {
-                return mService.setName(name, mAttributionSource);
-            }
-        } catch (RemoteException e) {
-            Log.e(TAG, "", e);
-        } finally {
-            mServiceLock.readLock().unlock();
-        }
-        return false;
-    }
-
-    /**
-     * Returns the {@link BluetoothClass} Bluetooth Class of Device (CoD) of the local Bluetooth
-     * adapter.
-     *
-     * @return {@link BluetoothClass} Bluetooth CoD of local Bluetooth device.
-     *
-     * @hide
-     */
-    @RequiresLegacyBluetoothAdminPermission
-    @RequiresBluetoothConnectPermission
-    @RequiresPermission(android.Manifest.permission.BLUETOOTH_CONNECT)
-    public BluetoothClass getBluetoothClass() {
-        if (getState() != STATE_ON) {
-            return null;
-        }
-        try {
-            mServiceLock.readLock().lock();
-            if (mService != null) {
-                return mService.getBluetoothClass(mAttributionSource);
-            }
-        } catch (RemoteException e) {
-            Log.e(TAG, "", e);
-        } finally {
-            mServiceLock.readLock().unlock();
-        }
-        return null;
-    }
-
-    /**
-     * Sets the {@link BluetoothClass} Bluetooth Class of Device (CoD) of the local Bluetooth
-     * adapter.
-     *
-     * <p>Note: This value persists across system reboot.
-     *
-     * @param bluetoothClass {@link BluetoothClass} to set the local Bluetooth adapter to.
-     * @return true if successful, false if unsuccessful.
-     *
-     * @hide
-     */
-    @RequiresBluetoothConnectPermission
-    @RequiresPermission(allOf = {
-            android.Manifest.permission.BLUETOOTH_CONNECT,
-            android.Manifest.permission.BLUETOOTH_PRIVILEGED,
-    })
-    public boolean setBluetoothClass(BluetoothClass bluetoothClass) {
-        if (getState() != STATE_ON) {
-            return false;
-        }
-        try {
-            mServiceLock.readLock().lock();
-            if (mService != null) {
-                return mService.setBluetoothClass(bluetoothClass, mAttributionSource);
-            }
-        } catch (RemoteException e) {
-            Log.e(TAG, "", e);
-        } finally {
-            mServiceLock.readLock().unlock();
-        }
-        return false;
-    }
-
-    /**
-     * Returns the Input/Output capability of the device for classic Bluetooth.
-     *
-     * @return Input/Output capability of the device. One of {@link #IO_CAPABILITY_OUT},
-     *         {@link #IO_CAPABILITY_IO}, {@link #IO_CAPABILITY_IN}, {@link #IO_CAPABILITY_NONE},
-     *         {@link #IO_CAPABILITY_KBDISP} or {@link #IO_CAPABILITY_UNKNOWN}.
-     *
-     * @hide
-     */
-    @RequiresLegacyBluetoothAdminPermission
-    @RequiresBluetoothConnectPermission
-    @RequiresPermission(android.Manifest.permission.BLUETOOTH_CONNECT)
-    @IoCapability
-    public int getIoCapability() {
-        if (getState() != STATE_ON) return BluetoothAdapter.IO_CAPABILITY_UNKNOWN;
-        try {
-            mServiceLock.readLock().lock();
-            if (mService != null) return mService.getIoCapability(mAttributionSource);
-        } catch (RemoteException e) {
-            Log.e(TAG, e.getMessage(), e);
-        } finally {
-            mServiceLock.readLock().unlock();
-        }
-        return BluetoothAdapter.IO_CAPABILITY_UNKNOWN;
-    }
-
-    /**
-     * Sets the Input/Output capability of the device for classic Bluetooth.
-     *
-     * <p>Changing the Input/Output capability of a device only takes effect on restarting the
-     * Bluetooth stack. You would need to restart the stack using {@link BluetoothAdapter#disable()}
-     * and {@link BluetoothAdapter#enable()} to see the changes.
-     *
-     * @param capability Input/Output capability of the device. One of {@link #IO_CAPABILITY_OUT},
-     *                   {@link #IO_CAPABILITY_IO}, {@link #IO_CAPABILITY_IN},
-     *                   {@link #IO_CAPABILITY_NONE} or {@link #IO_CAPABILITY_KBDISP}.
-     *
-     * @hide
-     */
-    @RequiresBluetoothConnectPermission
-    @RequiresPermission(allOf = {
-            android.Manifest.permission.BLUETOOTH_CONNECT,
-            android.Manifest.permission.BLUETOOTH_PRIVILEGED,
-    })
-    public boolean setIoCapability(@IoCapability int capability) {
-        if (getState() != STATE_ON) return false;
-        try {
-            mServiceLock.readLock().lock();
-            if (mService != null) return mService.setIoCapability(capability, mAttributionSource);
-        } catch (RemoteException e) {
-            Log.e(TAG, e.getMessage(), e);
-        } finally {
-            mServiceLock.readLock().unlock();
-        }
-        return false;
-    }
-
-    /**
-     * Returns the Input/Output capability of the device for BLE operations.
-     *
-     * @return Input/Output capability of the device. One of {@link #IO_CAPABILITY_OUT},
-     *         {@link #IO_CAPABILITY_IO}, {@link #IO_CAPABILITY_IN}, {@link #IO_CAPABILITY_NONE},
-     *         {@link #IO_CAPABILITY_KBDISP} or {@link #IO_CAPABILITY_UNKNOWN}.
-     *
-     * @hide
-     */
-    @RequiresLegacyBluetoothAdminPermission
-    @RequiresBluetoothConnectPermission
-    @RequiresPermission(android.Manifest.permission.BLUETOOTH_CONNECT)
-    @IoCapability
-    public int getLeIoCapability() {
-        if (getState() != STATE_ON) return BluetoothAdapter.IO_CAPABILITY_UNKNOWN;
-        try {
-            mServiceLock.readLock().lock();
-            if (mService != null) return mService.getLeIoCapability(mAttributionSource);
-        } catch (RemoteException e) {
-            Log.e(TAG, e.getMessage(), e);
-        } finally {
-            mServiceLock.readLock().unlock();
-        }
-        return BluetoothAdapter.IO_CAPABILITY_UNKNOWN;
-    }
-
-    /**
-     * Sets the Input/Output capability of the device for BLE operations.
-     *
-     * <p>Changing the Input/Output capability of a device only takes effect on restarting the
-     * Bluetooth stack. You would need to restart the stack using {@link BluetoothAdapter#disable()}
-     * and {@link BluetoothAdapter#enable()} to see the changes.
-     *
-     * @param capability Input/Output capability of the device. One of {@link #IO_CAPABILITY_OUT},
-     *                   {@link #IO_CAPABILITY_IO}, {@link #IO_CAPABILITY_IN},
-     *                   {@link #IO_CAPABILITY_NONE} or {@link #IO_CAPABILITY_KBDISP}.
-     *
-     * @hide
-     */
-    @RequiresBluetoothConnectPermission
-    @RequiresPermission(allOf = {
-            android.Manifest.permission.BLUETOOTH_CONNECT,
-            android.Manifest.permission.BLUETOOTH_PRIVILEGED,
-    })
-    public boolean setLeIoCapability(@IoCapability int capability) {
-        if (getState() != STATE_ON) return false;
-        try {
-            mServiceLock.readLock().lock();
-            if (mService != null) return mService.setLeIoCapability(capability, mAttributionSource);
-        } catch (RemoteException e) {
-            Log.e(TAG, e.getMessage(), e);
-        } finally {
-            mServiceLock.readLock().unlock();
-        }
-        return false;
-    }
-
-    /**
-     * Get the current Bluetooth scan mode of the local Bluetooth adapter.
-     * <p>The Bluetooth scan mode determines if the local adapter is
-     * connectable and/or discoverable from remote Bluetooth devices.
-     * <p>Possible values are:
-     * {@link #SCAN_MODE_NONE},
-     * {@link #SCAN_MODE_CONNECTABLE},
-     * {@link #SCAN_MODE_CONNECTABLE_DISCOVERABLE}.
-     * <p>If Bluetooth state is not {@link #STATE_ON}, this API
-     * will return {@link #SCAN_MODE_NONE}. After turning on Bluetooth,
-     * wait for {@link #ACTION_STATE_CHANGED} with {@link #STATE_ON}
-     * to get the updated value.
-     *
-     * @return scan mode
-     */
-    @RequiresLegacyBluetoothPermission
-    @RequiresBluetoothScanPermission
-    @RequiresPermission(android.Manifest.permission.BLUETOOTH_SCAN)
-    @ScanMode
-    public int getScanMode() {
-        if (getState() != STATE_ON) {
-            return SCAN_MODE_NONE;
-        }
-        try {
-            mServiceLock.readLock().lock();
-            if (mService != null) {
-                return mService.getScanMode(mAttributionSource);
-            }
-        } catch (RemoteException e) {
-            throw e.rethrowFromSystemServer();
-        } finally {
-            mServiceLock.readLock().unlock();
-        }
-        return SCAN_MODE_NONE;
-    }
-
-    /**
-     * Set the local Bluetooth adapter connectablility and discoverability.
-     * <p>If the scan mode is set to {@link #SCAN_MODE_CONNECTABLE_DISCOVERABLE},
-     * it will change to {@link #SCAN_MODE_CONNECTABLE} after the discoverable timeout.
-     * The discoverable timeout can be set with {@link #setDiscoverableTimeout} and
-     * checked with {@link #getDiscoverableTimeout}. By default, the timeout is usually
-     * 120 seconds on phones which is enough for a remote device to initiate and complete
-     * its discovery process.
-     * <p>Applications cannot set the scan mode. They should use
-     * {@link #ACTION_REQUEST_DISCOVERABLE} instead.
-     *
-     * @param mode represents the desired state of the local device scan mode
-     *
-     * @return status code indicating whether the scan mode was successfully set
-     * @hide
-     */
-    @SystemApi
-    @RequiresBluetoothScanPermission
-    @RequiresPermission(allOf = {
-            android.Manifest.permission.BLUETOOTH_SCAN,
-            android.Manifest.permission.BLUETOOTH_PRIVILEGED,
-    })
-    @ScanModeStatusCode
-    public int setScanMode(@ScanMode int mode) {
-        if (getState() != STATE_ON) {
-            return BluetoothStatusCodes.ERROR_BLUETOOTH_NOT_ENABLED;
-        }
-        try {
-            mServiceLock.readLock().lock();
-            if (mService != null) {
-                return mService.setScanMode(mode, mAttributionSource);
-            }
-        } catch (RemoteException e) {
-            throw e.rethrowFromSystemServer();
-        } finally {
-            mServiceLock.readLock().unlock();
-        }
-        return BluetoothStatusCodes.ERROR_UNKNOWN;
-    }
-
-    /**
-     * Get the timeout duration of the {@link #SCAN_MODE_CONNECTABLE_DISCOVERABLE}.
-     *
-     * @return the duration of the discoverable timeout or null if an error has occurred
-     */
-    @RequiresBluetoothScanPermission
-    @RequiresPermission(android.Manifest.permission.BLUETOOTH_SCAN)
-    public @Nullable Duration getDiscoverableTimeout() {
-        if (getState() != STATE_ON) {
-            return null;
-        }
-        try {
-            mServiceLock.readLock().lock();
-            if (mService != null) {
-                long timeout = mService.getDiscoverableTimeout(mAttributionSource);
-                return (timeout == -1) ? null : Duration.ofSeconds(timeout);
-            }
-        } catch (RemoteException e) {
-            throw e.rethrowFromSystemServer();
-        } finally {
-            mServiceLock.readLock().unlock();
-        }
-        return null;
-    }
-
-    /**
-     * Set the total time the Bluetooth local adapter will stay discoverable when
-     * {@link #setScanMode} is called with {@link #SCAN_MODE_CONNECTABLE_DISCOVERABLE} mode.
-     * After this timeout, the scan mode will fallback to {@link #SCAN_MODE_CONNECTABLE}.
-     * <p>If <code>timeout</code> is set to 0, no timeout will occur and the scan mode will
-     * be persisted until a subsequent call to {@link #setScanMode}.
-     *
-     * @param timeout represents the total duration the local Bluetooth adapter will remain
-     *                discoverable, or no timeout if set to 0
-     * @return whether the timeout was successfully set
-     * @throws IllegalArgumentException if <code>timeout</code> duration in seconds is more
-     *         than {@link Integer#MAX_VALUE}
-     * @hide
-     */
-    @SystemApi
-    @RequiresBluetoothScanPermission
-    @RequiresPermission(allOf = {
-            android.Manifest.permission.BLUETOOTH_SCAN,
-            android.Manifest.permission.BLUETOOTH_PRIVILEGED,
-    })
-    @ScanModeStatusCode
-    public int setDiscoverableTimeout(@NonNull Duration timeout) {
-        if (getState() != STATE_ON) {
-            return BluetoothStatusCodes.ERROR_BLUETOOTH_NOT_ENABLED;
-        }
-        if (timeout.toSeconds() > Integer.MAX_VALUE) {
-            throw new IllegalArgumentException("Timeout in seconds must be less or equal to "
-                    + Integer.MAX_VALUE);
-        }
-        try {
-            mServiceLock.readLock().lock();
-            if (mService != null) {
-                return mService.setDiscoverableTimeout(timeout.toSeconds(), mAttributionSource);
-            }
-        } catch (RemoteException e) {
-            throw e.rethrowFromSystemServer();
-        } finally {
-            mServiceLock.readLock().unlock();
-        }
-        return BluetoothStatusCodes.ERROR_UNKNOWN;
-    }
-
-    /**
-     * Get the end time of the latest remote device discovery process.
-     *
-     * @return the latest time that the bluetooth adapter was/will be in discovery mode, in
-     * milliseconds since the epoch. This time can be in the future if {@link #startDiscovery()} has
-     * been called recently.
-     * @hide
-     */
-    @SystemApi
-    @RequiresBluetoothConnectPermission
-    @RequiresPermission(allOf = {
-            android.Manifest.permission.BLUETOOTH_CONNECT,
-            android.Manifest.permission.BLUETOOTH_PRIVILEGED,
-    })
-    public long getDiscoveryEndMillis() {
-        try {
-            mServiceLock.readLock().lock();
-            if (mService != null) {
-                return mService.getDiscoveryEndMillis(mAttributionSource);
-            }
-        } catch (RemoteException e) {
-            Log.e(TAG, "", e);
-        } finally {
-            mServiceLock.readLock().unlock();
-        }
-        return -1;
-    }
-
-    /**
-     * Start the remote device discovery process.
-     * <p>The discovery process usually involves an inquiry scan of about 12
-     * seconds, followed by a page scan of each new device to retrieve its
-     * Bluetooth name.
-     * <p>This is an asynchronous call, it will return immediately. Register
-     * for {@link #ACTION_DISCOVERY_STARTED} and {@link
-     * #ACTION_DISCOVERY_FINISHED} intents to determine exactly when the
-     * discovery starts and completes. Register for {@link
-     * BluetoothDevice#ACTION_FOUND} to be notified as remote Bluetooth devices
-     * are found.
-     * <p>Device discovery is a heavyweight procedure. New connections to
-     * remote Bluetooth devices should not be attempted while discovery is in
-     * progress, and existing connections will experience limited bandwidth
-     * and high latency. Use {@link #cancelDiscovery()} to cancel an ongoing
-     * discovery. Discovery is not managed by the Activity,
-     * but is run as a system service, so an application should always call
-     * {@link BluetoothAdapter#cancelDiscovery()} even if it
-     * did not directly request a discovery, just to be sure.
-     * <p>Device discovery will only find remote devices that are currently
-     * <i>discoverable</i> (inquiry scan enabled). Many Bluetooth devices are
-     * not discoverable by default, and need to be entered into a special mode.
-     * <p>If Bluetooth state is not {@link #STATE_ON}, this API
-     * will return false. After turning on Bluetooth, wait for {@link #ACTION_STATE_CHANGED}
-     * with {@link #STATE_ON} to get the updated value.
-     * <p>If a device is currently bonding, this request will be queued and executed once that
-     * device has finished bonding. If a request is already queued, this request will be ignored.
-     *
-     * @return true on success, false on error
-     */
-    @RequiresLegacyBluetoothAdminPermission
-    @RequiresBluetoothScanPermission
-    @RequiresBluetoothLocationPermission
-    @RequiresPermission(android.Manifest.permission.BLUETOOTH_SCAN)
-    public boolean startDiscovery() {
-        if (getState() != STATE_ON) {
-            return false;
-        }
-        try {
-            mServiceLock.readLock().lock();
-            if (mService != null) {
-                return mService.startDiscovery(mAttributionSource);
-            }
-        } catch (RemoteException e) {
-            Log.e(TAG, "", e);
-        } finally {
-            mServiceLock.readLock().unlock();
-        }
-        return false;
-    }
-
-    /**
-     * Cancel the current device discovery process.
-     * <p>Because discovery is a heavyweight procedure for the Bluetooth
-     * adapter, this method should always be called before attempting to connect
-     * to a remote device with {@link
-     * android.bluetooth.BluetoothSocket#connect()}. Discovery is not managed by
-     * the  Activity, but is run as a system service, so an application should
-     * always call cancel discovery even if it did not directly request a
-     * discovery, just to be sure.
-     * <p>If Bluetooth state is not {@link #STATE_ON}, this API
-     * will return false. After turning on Bluetooth,
-     * wait for {@link #ACTION_STATE_CHANGED} with {@link #STATE_ON}
-     * to get the updated value.
-     *
-     * @return true on success, false on error
-     */
-    @RequiresLegacyBluetoothAdminPermission
-    @RequiresBluetoothScanPermission
-    @RequiresPermission(android.Manifest.permission.BLUETOOTH_SCAN)
-    public boolean cancelDiscovery() {
-        if (getState() != STATE_ON) {
-            return false;
-        }
-        try {
-            mServiceLock.readLock().lock();
-            if (mService != null) {
-                return mService.cancelDiscovery(mAttributionSource);
-            }
-        } catch (RemoteException e) {
-            Log.e(TAG, "", e);
-        } finally {
-            mServiceLock.readLock().unlock();
-        }
-        return false;
-    }
-
-    /**
-     * Return true if the local Bluetooth adapter is currently in the device
-     * discovery process.
-     * <p>Device discovery is a heavyweight procedure. New connections to
-     * remote Bluetooth devices should not be attempted while discovery is in
-     * progress, and existing connections will experience limited bandwidth
-     * and high latency. Use {@link #cancelDiscovery()} to cancel an ongoing
-     * discovery.
-     * <p>Applications can also register for {@link #ACTION_DISCOVERY_STARTED}
-     * or {@link #ACTION_DISCOVERY_FINISHED} to be notified when discovery
-     * starts or completes.
-     * <p>If Bluetooth state is not {@link #STATE_ON}, this API
-     * will return false. After turning on Bluetooth,
-     * wait for {@link #ACTION_STATE_CHANGED} with {@link #STATE_ON}
-     * to get the updated value.
-     *
-     * @return true if discovering
-     */
-    @RequiresLegacyBluetoothPermission
-    @RequiresBluetoothScanPermission
-    @RequiresPermission(android.Manifest.permission.BLUETOOTH_SCAN)
-    public boolean isDiscovering() {
-        if (getState() != STATE_ON) {
-            return false;
-        }
-        try {
-            mServiceLock.readLock().lock();
-            if (mService != null) {
-                return mService.isDiscovering(mAttributionSource);
-            }
-        } catch (RemoteException e) {
-            Log.e(TAG, "", e);
-        } finally {
-            mServiceLock.readLock().unlock();
-        }
-        return false;
-    }
-
-    /**
-     * Removes the active device for the grouping of @ActiveDeviceUse specified
-     *
-     * @param profiles represents the purpose for which we are setting this as the active device.
-     *                 Possible values are:
-     *                 {@link BluetoothAdapter#ACTIVE_DEVICE_AUDIO},
-     *                 {@link BluetoothAdapter#ACTIVE_DEVICE_PHONE_CALL},
-     *                 {@link BluetoothAdapter#ACTIVE_DEVICE_ALL}
-     * @return false on immediate error, true otherwise
-     * @throws IllegalArgumentException if device is null or profiles is not one of
-     * {@link ActiveDeviceUse}
-     * @hide
-     */
-    @SystemApi
-    @RequiresBluetoothConnectPermission
-    @RequiresPermission(allOf = {
-            android.Manifest.permission.BLUETOOTH_CONNECT,
-            android.Manifest.permission.BLUETOOTH_PRIVILEGED,
-            android.Manifest.permission.MODIFY_PHONE_STATE,
-    })
-    public boolean removeActiveDevice(@ActiveDeviceUse int profiles) {
-        if (profiles != ACTIVE_DEVICE_AUDIO && profiles != ACTIVE_DEVICE_PHONE_CALL
-                && profiles != ACTIVE_DEVICE_ALL) {
-            Log.e(TAG, "Invalid profiles param value in removeActiveDevice");
-            throw new IllegalArgumentException("Profiles must be one of "
-                    + "BluetoothAdapter.ACTIVE_DEVICE_AUDIO, "
-                    + "BluetoothAdapter.ACTIVE_DEVICE_PHONE_CALL, or "
-                    + "BluetoothAdapter.ACTIVE_DEVICE_ALL");
-        }
-        try {
-            mServiceLock.readLock().lock();
-            if (mService != null) {
-                if (DBG) Log.d(TAG, "removeActiveDevice, profiles: " + profiles);
-                return mService.removeActiveDevice(profiles, mAttributionSource);
-            }
-        } catch (RemoteException e) {
-            Log.e(TAG, "", e);
-        } finally {
-            mServiceLock.readLock().unlock();
-        }
-
-        return false;
-    }
-
-    /**
-     * Sets device as the active devices for the profiles passed into the function
-     *
-     * @param device is the remote bluetooth device
-     * @param profiles represents the purpose for which we are setting this as the active device.
-     *                 Possible values are:
-     *                 {@link BluetoothAdapter#ACTIVE_DEVICE_AUDIO},
-     *                 {@link BluetoothAdapter#ACTIVE_DEVICE_PHONE_CALL},
-     *                 {@link BluetoothAdapter#ACTIVE_DEVICE_ALL}
-     * @return false on immediate error, true otherwise
-     * @throws IllegalArgumentException if device is null or profiles is not one of
-     * {@link ActiveDeviceUse}
-     * @hide
-     */
-    @SystemApi
-    @RequiresBluetoothConnectPermission
-    @RequiresPermission(allOf = {
-            android.Manifest.permission.BLUETOOTH_CONNECT,
-            android.Manifest.permission.BLUETOOTH_PRIVILEGED,
-            android.Manifest.permission.MODIFY_PHONE_STATE,
-    })
-    public boolean setActiveDevice(@NonNull BluetoothDevice device,
-            @ActiveDeviceUse int profiles) {
-        if (device == null) {
-            Log.e(TAG, "setActiveDevice: Null device passed as parameter");
-            throw new IllegalArgumentException("device cannot be null");
-        }
-        if (profiles != ACTIVE_DEVICE_AUDIO && profiles != ACTIVE_DEVICE_PHONE_CALL
-                && profiles != ACTIVE_DEVICE_ALL) {
-            Log.e(TAG, "Invalid profiles param value in setActiveDevice");
-            throw new IllegalArgumentException("Profiles must be one of "
-                    + "BluetoothAdapter.ACTIVE_DEVICE_AUDIO, "
-                    + "BluetoothAdapter.ACTIVE_DEVICE_PHONE_CALL, or "
-                    + "BluetoothAdapter.ACTIVE_DEVICE_ALL");
-        }
-        try {
-            mServiceLock.readLock().lock();
-            if (mService != null) {
-                if (DBG) {
-                    Log.d(TAG, "setActiveDevice, device: " + device + ", profiles: " + profiles);
-                }
-                return mService.setActiveDevice(device, profiles, mAttributionSource);
-            }
-        } catch (RemoteException e) {
-            Log.e(TAG, "", e);
-        } finally {
-            mServiceLock.readLock().unlock();
-        }
-
-        return false;
-    }
-
-    /**
-     * Get the active devices for the BluetoothProfile specified
-     *
-     * @param profile is the profile from which we want the active devices.
-     *                Possible values are:
-     *                {@link BluetoothProfile#HEADSET},
-     *                {@link BluetoothProfile#A2DP},
-     *                {@link BluetoothProfile#HEARING_AID}
-     *                {@link BluetoothProfile#LE_AUDIO}
-     * @return A list of active bluetooth devices
-     * @throws IllegalArgumentException If profile is not one of {@link ActiveDeviceProfile}
-     * @hide
-     */
-    @SystemApi
-    @RequiresPermission(allOf = {
-            android.Manifest.permission.BLUETOOTH_CONNECT,
-            android.Manifest.permission.BLUETOOTH_PRIVILEGED,
-    })
-    public @NonNull List<BluetoothDevice> getActiveDevices(@ActiveDeviceProfile int profile) {
-        if (profile != BluetoothProfile.HEADSET
-                && profile != BluetoothProfile.A2DP
-                && profile != BluetoothProfile.HEARING_AID
-                && profile != BluetoothProfile.LE_AUDIO) {
-            Log.e(TAG, "Invalid profile param value in getActiveDevices");
-            throw new IllegalArgumentException("Profiles must be one of "
-                    + "BluetoothProfile.A2DP, "
-                    + "BluetoothProfile.HEARING_AID, or"
-                    + "BluetoothProfile.HEARING_AID"
-                    + "BluetoothProfile.LE_AUDIO");
-        }
-        try {
-            mServiceLock.readLock().lock();
-            if (mService != null) {
-                if (DBG) {
-                    Log.d(TAG, "getActiveDevices(profile= "
-                            + BluetoothProfile.getProfileName(profile) + ")");
-                }
-                return mService.getActiveDevices(profile, mAttributionSource);
-            }
-        } catch (RemoteException e) {
-            Log.e(TAG, "", e);
-        } finally {
-            mServiceLock.readLock().unlock();
-        }
-
-        return new ArrayList<>();
-    }
-
-    /**
-     * Return true if the multi advertisement is supported by the chipset
-     *
-     * @return true if Multiple Advertisement feature is supported
-     */
-    @RequiresLegacyBluetoothPermission
-    @RequiresNoPermission
-    public boolean isMultipleAdvertisementSupported() {
-        if (getState() != STATE_ON) {
-            return false;
-        }
-        try {
-            mServiceLock.readLock().lock();
-            if (mService != null) {
-                return mService.isMultiAdvertisementSupported();
-            }
-        } catch (RemoteException e) {
-            Log.e(TAG, "failed to get isMultipleAdvertisementSupported, error: ", e);
-        } finally {
-            mServiceLock.readLock().unlock();
-        }
-        return false;
-    }
-
-    /**
-     * Returns {@code true} if BLE scan is always available, {@code false} otherwise. <p>
-     *
-     * If this returns {@code true}, application can issue {@link BluetoothLeScanner#startScan} and
-     * fetch scan results even when Bluetooth is turned off.<p>
-     *
-     * To change this setting, use {@link #ACTION_REQUEST_BLE_SCAN_ALWAYS_AVAILABLE}.
-     *
-     * @hide
-     */
-    @SystemApi
-    @RequiresNoPermission
-    public boolean isBleScanAlwaysAvailable() {
-        try {
-            return mManagerService.isBleScanAlwaysAvailable();
-        } catch (RemoteException e) {
-            Log.e(TAG, "remote exception when calling isBleScanAlwaysAvailable", e);
-            return false;
-        }
-    }
-
-    /*
-    private static final String BLUETOOTH_FILTERING_CACHE_PROPERTY =
-            "cache_key.bluetooth.is_offloaded_filtering_supported";
-    private final PropertyInvalidatedCache<Void, Boolean> mBluetoothFilteringCache =
-            new PropertyInvalidatedCache<Void, Boolean>(
-                8, BLUETOOTH_FILTERING_CACHE_PROPERTY) {
-                @Override
-                @SuppressLint("AndroidFrameworkRequiresPermission")
-                public Boolean recompute(Void query) {
-                    try {
-                        mServiceLock.readLock().lock();
-                        if (mService != null) {
-                            return mService.isOffloadedFilteringSupported();
-                        }
-                    } catch (RemoteException e) {
-                        Log.e(TAG, "failed to get isOffloadedFilteringSupported, error: ", e);
-                    } finally {
-                        mServiceLock.readLock().unlock();
-                    }
-                    return false;
-
-                }
-            };
-     */
-
-    /** @hide */
-    /*
-    @RequiresNoPermission
-    public void disableIsOffloadedFilteringSupportedCache() {
-        mBluetoothFilteringCache.disableLocal();
-    }
-     */
-
-    /** @hide */
-    /*
-    public static void invalidateIsOffloadedFilteringSupportedCache() {
-        PropertyInvalidatedCache.invalidateCache(BLUETOOTH_FILTERING_CACHE_PROPERTY);
-    }
-     */
-
-    /**
-     * Return true if offloaded filters are supported
-     *
-     * @return true if chipset supports on-chip filtering
-     */
-    @RequiresLegacyBluetoothPermission
-    @RequiresNoPermission
-    public boolean isOffloadedFilteringSupported() {
-        if (!getLeAccess()) {
-            return false;
-        }
-        //return mBluetoothFilteringCache.query(null);
-        try {
-            mServiceLock.readLock().lock();
-            if (mService != null) {
-                return mService.isOffloadedFilteringSupported();
-            }
-        } catch (RemoteException e) {
-            Log.e(TAG, "failed to get isOffloadedFilteringSupported, error: ", e);
-        } finally {
-            mServiceLock.readLock().unlock();
-        }
-        return false;
-    }
-
-    /**
-     * Return true if offloaded scan batching is supported
-     *
-     * @return true if chipset supports on-chip scan batching
-     */
-    @RequiresLegacyBluetoothPermission
-    @RequiresNoPermission
-    public boolean isOffloadedScanBatchingSupported() {
-        if (!getLeAccess()) {
-            return false;
-        }
-        try {
-            mServiceLock.readLock().lock();
-            if (mService != null) {
-                return mService.isOffloadedScanBatchingSupported();
-            }
-        } catch (RemoteException e) {
-            Log.e(TAG, "failed to get isOffloadedScanBatchingSupported, error: ", e);
-        } finally {
-            mServiceLock.readLock().unlock();
-        }
-        return false;
-    }
-
-    /**
-     * Return true if LE 2M PHY feature is supported.
-     *
-     * @return true if chipset supports LE 2M PHY feature
-     */
-    @RequiresLegacyBluetoothPermission
-    @RequiresNoPermission
-    public boolean isLe2MPhySupported() {
-        if (!getLeAccess()) {
-            return false;
-        }
-        try {
-            mServiceLock.readLock().lock();
-            if (mService != null) {
-                return mService.isLe2MPhySupported();
-            }
-        } catch (RemoteException e) {
-            Log.e(TAG, "failed to get isExtendedAdvertisingSupported, error: ", e);
-        } finally {
-            mServiceLock.readLock().unlock();
-        }
-        return false;
-    }
-
-    /**
-     * Return true if LE Coded PHY feature is supported.
-     *
-     * @return true if chipset supports LE Coded PHY feature
-     */
-    @RequiresLegacyBluetoothPermission
-    @RequiresNoPermission
-    public boolean isLeCodedPhySupported() {
-        if (!getLeAccess()) {
-            return false;
-        }
-        try {
-            mServiceLock.readLock().lock();
-            if (mService != null) {
-                return mService.isLeCodedPhySupported();
-            }
-        } catch (RemoteException e) {
-            Log.e(TAG, "failed to get isLeCodedPhySupported, error: ", e);
-        } finally {
-            mServiceLock.readLock().unlock();
-        }
-        return false;
-    }
-
-    /**
-     * Return true if LE Extended Advertising feature is supported.
-     *
-     * @return true if chipset supports LE Extended Advertising feature
-     */
-    @RequiresLegacyBluetoothPermission
-    @RequiresNoPermission
-    public boolean isLeExtendedAdvertisingSupported() {
-        if (!getLeAccess()) {
-            return false;
-        }
-        try {
-            mServiceLock.readLock().lock();
-            if (mService != null) {
-                return mService.isLeExtendedAdvertisingSupported();
-            }
-        } catch (RemoteException e) {
-            Log.e(TAG, "failed to get isLeExtendedAdvertisingSupported, error: ", e);
-        } finally {
-            mServiceLock.readLock().unlock();
-        }
-        return false;
-    }
-
-    /**
-     * Return true if LE Periodic Advertising feature is supported.
-     *
-     * @return true if chipset supports LE Periodic Advertising feature
-     */
-    @RequiresLegacyBluetoothPermission
-    @RequiresNoPermission
-    public boolean isLePeriodicAdvertisingSupported() {
-        if (!getLeAccess()) {
-            return false;
-        }
-        try {
-            mServiceLock.readLock().lock();
-            if (mService != null) {
-                return mService.isLePeriodicAdvertisingSupported();
-            }
-        } catch (RemoteException e) {
-            Log.e(TAG, "failed to get isLePeriodicAdvertisingSupported, error: ", e);
-        } finally {
-            mServiceLock.readLock().unlock();
-        }
-        return false;
-    }
-
-    /** @hide */
-    @Retention(RetentionPolicy.SOURCE)
-    @IntDef(value = {
-            BluetoothStatusCodes.FEATURE_SUPPORTED,
-            BluetoothStatusCodes.ERROR_UNKNOWN,
-            BluetoothStatusCodes.ERROR_BLUETOOTH_NOT_ENABLED,
-            BluetoothStatusCodes.FEATURE_NOT_SUPPORTED,
-    })
-    public @interface LeFeatureReturnValues {}
-
-    /**
-     * Returns {@link BluetoothStatusCodes#FEATURE_SUPPORTED} if the LE audio feature is
-     * supported, {@link BluetoothStatusCodes#FEATURE_NOT_SUPPORTED} if the feature is not
-     * supported, or an error code.
-     *
-     * @return whether the LE audio is supported
-     */
-    @RequiresNoPermission
-    public @LeFeatureReturnValues int isLeAudioSupported() {
-        if (!getLeAccess()) {
-            return BluetoothStatusCodes.ERROR_BLUETOOTH_NOT_ENABLED;
-        }
-        try {
-            mServiceLock.readLock().lock();
-            if (mService != null) {
-                return mService.isLeAudioSupported();
-            }
-        } catch (RemoteException e) {
-            e.rethrowFromSystemServer();
-        } finally {
-            mServiceLock.readLock().unlock();
-        }
-        return BluetoothStatusCodes.ERROR_UNKNOWN;
-    }
-
-    /**
-     * Returns {@link BluetoothStatusCodes#FEATURE_SUPPORTED} if LE Periodic Advertising Sync
-     * Transfer Sender feature is supported,
-     * {@link BluetoothStatusCodes#FEATURE_NOT_SUPPORTED} if the feature is not supported, or
-     * an error code
-     *
-     * @return whether the chipset supports the LE Periodic Advertising Sync Transfer Sender feature
-     */
-    @RequiresNoPermission
-    public @LeFeatureReturnValues int isLePeriodicAdvertisingSyncTransferSenderSupported() {
-        if (!getLeAccess()) {
-            return BluetoothStatusCodes.ERROR_BLUETOOTH_NOT_ENABLED;
-        }
-        try {
-            mServiceLock.readLock().lock();
-            if (mService != null) {
-                return mService.isLePeriodicAdvertisingSyncTransferSenderSupported();
-            }
-        } catch (RemoteException e) {
-            e.rethrowFromSystemServer();
-        } finally {
-            mServiceLock.readLock().unlock();
-        }
-        return BluetoothStatusCodes.ERROR_UNKNOWN;
-    }
-
-    /**
-     * Return the maximum LE advertising data length in bytes,
-     * if LE Extended Advertising feature is supported, 0 otherwise.
-     *
-     * @return the maximum LE advertising data length.
-     */
-    @RequiresLegacyBluetoothPermission
-    @RequiresNoPermission
-    public int getLeMaximumAdvertisingDataLength() {
-        if (!getLeAccess()) {
-            return 0;
-        }
-        try {
-            mServiceLock.readLock().lock();
-            if (mService != null) {
-                return mService.getLeMaximumAdvertisingDataLength();
-            }
-        } catch (RemoteException e) {
-            Log.e(TAG, "failed to get getLeMaximumAdvertisingDataLength, error: ", e);
-        } finally {
-            mServiceLock.readLock().unlock();
-        }
-        return 0;
-    }
-
-    /**
-     * Return true if Hearing Aid Profile is supported.
-     *
-     * @return true if phone supports Hearing Aid Profile
-     */
-    @RequiresNoPermission
-    private boolean isHearingAidProfileSupported() {
-        try {
-            return mManagerService.isHearingAidProfileSupported();
-        } catch (RemoteException e) {
-            Log.e(TAG, "remote exception when calling isHearingAidProfileSupported", e);
-            return false;
-        }
-    }
-
-    /**
-     * Get the maximum number of connected audio devices.
-     *
-     * @return the maximum number of connected audio devices
-     * @hide
-     */
-    @RequiresLegacyBluetoothPermission
-    @RequiresBluetoothConnectPermission
-    @RequiresPermission(android.Manifest.permission.BLUETOOTH_CONNECT)
-    public int getMaxConnectedAudioDevices() {
-        try {
-            mServiceLock.readLock().lock();
-            if (mService != null) {
-                return mService.getMaxConnectedAudioDevices(mAttributionSource);
-            }
-        } catch (RemoteException e) {
-            Log.e(TAG, "failed to get getMaxConnectedAudioDevices, error: ", e);
-        } finally {
-            mServiceLock.readLock().unlock();
-        }
-        return 1;
-    }
-
-    /**
-     * Return true if hardware has entries available for matching beacons
-     *
-     * @return true if there are hw entries available for matching beacons
-     * @hide
-     */
-    @RequiresBluetoothConnectPermission
-    @RequiresPermission(android.Manifest.permission.BLUETOOTH_CONNECT)
-    public boolean isHardwareTrackingFiltersAvailable() {
-        if (!getLeAccess()) {
-            return false;
-        }
-        try {
-            IBluetoothGatt iGatt = mManagerService.getBluetoothGatt();
-            if (iGatt == null) {
-                // BLE is not supported
-                return false;
-            }
-            return (iGatt.numHwTrackFiltersAvailable(mAttributionSource) != 0);
-        } catch (RemoteException e) {
-            Log.e(TAG, "", e);
-        }
-        return false;
-    }
-
-    /**
-     * Request the record of {@link BluetoothActivityEnergyInfo} object that
-     * has the activity and energy info. This can be used to ascertain what
-     * the controller has been up to, since the last sample.
-     *
-     * A null value for the activity info object may be sent if the bluetooth service is
-     * unreachable or the device does not support reporting such information.
-     *
-     * @param result The callback to which to send the activity info.
-     * @hide
-     */
-    @RequiresBluetoothConnectPermission
-    @RequiresPermission(allOf = {
-            android.Manifest.permission.BLUETOOTH_CONNECT,
-            android.Manifest.permission.BLUETOOTH_PRIVILEGED,
-    })
-    public void requestControllerActivityEnergyInfo(ResultReceiver result) {
-        try {
-            mServiceLock.readLock().lock();
-            if (mService != null) {
-                mService.requestActivityInfo(result, mAttributionSource);
-                result = null;
-            }
-        } catch (RemoteException e) {
-            Log.e(TAG, "getControllerActivityEnergyInfoCallback: " + e);
-        } finally {
-            mServiceLock.readLock().unlock();
-            if (result != null) {
-                // Only send an immediate result if we failed.
-                result.send(0, null);
-            }
-        }
-    }
-
-    /**
-     * Fetches a list of the most recently connected bluetooth devices ordered by how recently they
-     * were connected with most recently first and least recently last
-     *
-     * @return {@link List} of bonded {@link BluetoothDevice} ordered by how recently they were
-     * connected
-     *
-     * @hide
-     */
-    @RequiresLegacyBluetoothAdminPermission
-    @RequiresBluetoothConnectPermission
-    @RequiresPermission(android.Manifest.permission.BLUETOOTH_CONNECT)
-    public @NonNull List<BluetoothDevice> getMostRecentlyConnectedDevices() {
-        if (getState() != STATE_ON) {
-            return new ArrayList<>();
-        }
-        try {
-            mServiceLock.readLock().lock();
-            if (mService != null) {
-                return Attributable.setAttributionSource(
-                        mService.getMostRecentlyConnectedDevices(mAttributionSource),
-                        mAttributionSource);
-            }
-        } catch (RemoteException e) {
-            Log.e(TAG, "", e);
-        } finally {
-            mServiceLock.readLock().unlock();
-        }
-        return new ArrayList<>();
-    }
-
-    /**
-     * Return the set of {@link BluetoothDevice} objects that are bonded
-     * (paired) to the local adapter.
-     * <p>If Bluetooth state is not {@link #STATE_ON}, this API
-     * will return an empty set. After turning on Bluetooth,
-     * wait for {@link #ACTION_STATE_CHANGED} with {@link #STATE_ON}
-     * to get the updated value.
-     *
-     * @return unmodifiable set of {@link BluetoothDevice}, or null on error
-     */
-    @RequiresLegacyBluetoothPermission
-    @RequiresBluetoothConnectPermission
-    @RequiresPermission(android.Manifest.permission.BLUETOOTH_CONNECT)
-    public Set<BluetoothDevice> getBondedDevices() {
-        if (getState() != STATE_ON) {
-            return toDeviceSet(Arrays.asList());
-        }
-        try {
-            mServiceLock.readLock().lock();
-            if (mService != null) {
-                return toDeviceSet(Attributable.setAttributionSource(
-                        Arrays.asList(mService.getBondedDevices(mAttributionSource)),
-                        mAttributionSource));
-            }
-            return toDeviceSet(Arrays.asList());
-        } catch (RemoteException e) {
-            Log.e(TAG, "", e);
-        } finally {
-            mServiceLock.readLock().unlock();
-        }
-        return null;
-    }
-
-    /**
-     * Gets the currently supported profiles by the adapter.
-     *
-     * <p> This can be used to check whether a profile is supported before attempting
-     * to connect to its respective proxy.
-     *
-     * @return a list of integers indicating the ids of supported profiles as defined in {@link
-     * BluetoothProfile}.
-     * @hide
-     */
-    @RequiresNoPermission
-    public @NonNull List<Integer> getSupportedProfiles() {
-        final ArrayList<Integer> supportedProfiles = new ArrayList<Integer>();
-
-        try {
-            synchronized (mManagerCallback) {
-                if (mService != null) {
-                    final long supportedProfilesBitMask = mService.getSupportedProfiles();
-
-                    for (int i = 0; i <= BluetoothProfile.MAX_PROFILE_ID; i++) {
-                        if ((supportedProfilesBitMask & (1 << i)) != 0) {
-                            supportedProfiles.add(i);
-                        }
-                    }
-                } else {
-                    // Bluetooth is disabled. Just fill in known supported Profiles
-                    if (isHearingAidProfileSupported()) {
-                        supportedProfiles.add(BluetoothProfile.HEARING_AID);
-                    }
-                }
-            }
-        } catch (RemoteException e) {
-            Log.e(TAG, "getSupportedProfiles:", e);
-        }
-        return supportedProfiles;
-    }
-
-    /*
-    private static final String BLUETOOTH_GET_ADAPTER_CONNECTION_STATE_CACHE_PROPERTY =
-            "cache_key.bluetooth.get_adapter_connection_state";
-    private final PropertyInvalidatedCache<Void, Integer>
-            mBluetoothGetAdapterConnectionStateCache =
-            new PropertyInvalidatedCache<Void, Integer> (
-                8, BLUETOOTH_GET_ADAPTER_CONNECTION_STATE_CACHE_PROPERTY) {
-                @Override
-                @SuppressLint("AndroidFrameworkRequiresPermission")
-                public Integer recompute(Void query) {
-                    try {
-                        return mService.getAdapterConnectionState();
-                    } catch (RemoteException e) {
-                        throw e.rethrowAsRuntimeException();
-                    }
-                }
-            };
-     */
-
-    /** @hide */
-    /*
-    @RequiresNoPermission
-    public void disableGetAdapterConnectionStateCache() {
-        mBluetoothGetAdapterConnectionStateCache.disableLocal();
-    }
-     */
-
-    /** @hide */
-    /*
-    public static void invalidateGetAdapterConnectionStateCache() {
-        PropertyInvalidatedCache.invalidateCache(
-            BLUETOOTH_GET_ADAPTER_CONNECTION_STATE_CACHE_PROPERTY);
-    }
-     */
-
-    /**
-     * Get the current connection state of the local Bluetooth adapter.
-     * This can be used to check whether the local Bluetooth adapter is connected
-     * to any profile of any other remote Bluetooth Device.
-     *
-     * <p> Use this function along with {@link #ACTION_CONNECTION_STATE_CHANGED}
-     * intent to get the connection state of the adapter.
-     *
-     * @return One of {@link #STATE_CONNECTED}, {@link #STATE_DISCONNECTED}, {@link
-     * #STATE_CONNECTING} or {@link #STATE_DISCONNECTED}
-     * @hide
-     */
-    @UnsupportedAppUsage
-    @RequiresLegacyBluetoothPermission
-    @RequiresNoPermission
-    public int getConnectionState() {
-        if (getState() != STATE_ON) {
-            return BluetoothAdapter.STATE_DISCONNECTED;
-        }
-        try {
-            mServiceLock.readLock().lock();
-            if (mService != null) {
-                return mService.getAdapterConnectionState();
-            }
-            //return mBluetoothGetAdapterConnectionStateCache.query(null);
-        } catch (RemoteException e) {
-            Log.e(TAG, "failed to getConnectionState, error: ", e);
-        } finally {
-            mServiceLock.readLock().unlock();
-        }
-        return BluetoothAdapter.STATE_DISCONNECTED;
-    }
-
-    /*
-    private static final String BLUETOOTH_PROFILE_CACHE_PROPERTY =
-            "cache_key.bluetooth.get_profile_connection_state";
-    private final PropertyInvalidatedCache<Integer, Integer>
-            mGetProfileConnectionStateCache =
-            new PropertyInvalidatedCache<Integer, Integer>(
-                8, BLUETOOTH_PROFILE_CACHE_PROPERTY) {
-                @Override
-                @SuppressLint("AndroidFrameworkRequiresPermission")
-                public Integer recompute(Integer query) {
-                    try {
-                        mServiceLock.readLock().lock();
-                        if (mService != null) {
-                            return mService.getProfileConnectionState(query);
-                        }
-                    } catch (RemoteException e) {
-                        Log.e(TAG, "getProfileConnectionState:", e);
-                    } finally {
-                        mServiceLock.readLock().unlock();
-                    }
-                    return BluetoothProfile.STATE_DISCONNECTED;
-                }
-                @Override
-                public String queryToString(Integer query) {
-                    return String.format("getProfileConnectionState(profile=\"%d\")",
-                                         query);
-                }
-            };
-     */
-
-    /** @hide */
-    /*
-    @RequiresNoPermission
-    public void disableGetProfileConnectionStateCache() {
-        mGetProfileConnectionStateCache.disableLocal();
-    }
-     */
-
-    /** @hide */
-    /*
-    public static void invalidateGetProfileConnectionStateCache() {
-        PropertyInvalidatedCache.invalidateCache(BLUETOOTH_PROFILE_CACHE_PROPERTY);
-    }
-     */
-
-    /**
-     * Get the current connection state of a profile.
-     * This function can be used to check whether the local Bluetooth adapter
-     * is connected to any remote device for a specific profile.
-     * Profile can be one of {@link BluetoothProfile#HEADSET}, {@link BluetoothProfile#A2DP}.
-     *
-     * <p> Return value can be one of
-     * {@link BluetoothProfile#STATE_DISCONNECTED},
-     * {@link BluetoothProfile#STATE_CONNECTING},
-     * {@link BluetoothProfile#STATE_CONNECTED},
-     * {@link BluetoothProfile#STATE_DISCONNECTING}
-     */
-    @RequiresLegacyBluetoothPermission
-    @RequiresBluetoothConnectPermission
-    @RequiresPermission(android.Manifest.permission.BLUETOOTH_CONNECT)
-    @SuppressLint("AndroidFrameworkRequiresPermission")
-    public int getProfileConnectionState(int profile) {
-        if (getState() != STATE_ON) {
-            return BluetoothProfile.STATE_DISCONNECTED;
-        }
-        try {
-            mServiceLock.readLock().lock();
-            if (mService != null) {
-                mService.getProfileConnectionState(profile);
-            }
-            //return mGetProfileConnectionStateCache.query(new Integer(profile));
-        } catch (RemoteException e) {
-            Log.e(TAG, "failed to getProfileConnectionState, error: ", e);
-        } finally {
-            mServiceLock.readLock().unlock();
-        }
-        return BluetoothProfile.STATE_DISCONNECTED;
-    }
-
-    /**
-     * Create a listening, secure RFCOMM Bluetooth socket.
-     * <p>A remote device connecting to this socket will be authenticated and
-     * communication on this socket will be encrypted.
-     * <p>Use {@link BluetoothServerSocket#accept} to retrieve incoming
-     * connections from a listening {@link BluetoothServerSocket}.
-     * <p>Valid RFCOMM channels are in range 1 to 30.
-     *
-     * @param channel RFCOMM channel to listen on
-     * @return a listening RFCOMM BluetoothServerSocket
-     * @throws IOException on error, for example Bluetooth not available, or insufficient
-     * permissions, or channel in use.
-     * @hide
-     */
-    @RequiresLegacyBluetoothAdminPermission
-    @RequiresBluetoothConnectPermission
-    @RequiresPermission(android.Manifest.permission.BLUETOOTH_CONNECT)
-    public BluetoothServerSocket listenUsingRfcommOn(int channel) throws IOException {
-        return listenUsingRfcommOn(channel, false, false);
-    }
-
-    /**
-     * Create a listening, secure RFCOMM Bluetooth socket.
-     * <p>A remote device connecting to this socket will be authenticated and
-     * communication on this socket will be encrypted.
-     * <p>Use {@link BluetoothServerSocket#accept} to retrieve incoming
-     * connections from a listening {@link BluetoothServerSocket}.
-     * <p>Valid RFCOMM channels are in range 1 to 30.
-     * <p>To auto assign a channel without creating a SDP record use
-     * {@link #SOCKET_CHANNEL_AUTO_STATIC_NO_SDP} as channel number.
-     *
-     * @param channel RFCOMM channel to listen on
-     * @param mitm enforce person-in-the-middle protection for authentication.
-     * @param min16DigitPin enforce a pin key length og minimum 16 digit for sec mode 2
-     * connections.
-     * @return a listening RFCOMM BluetoothServerSocket
-     * @throws IOException on error, for example Bluetooth not available, or insufficient
-     * permissions, or channel in use.
-     * @hide
-     */
-    @UnsupportedAppUsage
-    @RequiresLegacyBluetoothAdminPermission
-    @RequiresBluetoothConnectPermission
-    @RequiresPermission(android.Manifest.permission.BLUETOOTH_CONNECT)
-    public BluetoothServerSocket listenUsingRfcommOn(int channel, boolean mitm,
-            boolean min16DigitPin) throws IOException {
-        BluetoothServerSocket socket =
-                new BluetoothServerSocket(BluetoothSocket.TYPE_RFCOMM, true, true, channel, mitm,
-                        min16DigitPin);
-        int errno = socket.mSocket.bindListen();
-        if (channel == SOCKET_CHANNEL_AUTO_STATIC_NO_SDP) {
-            socket.setChannel(socket.mSocket.getPort());
-        }
-        if (errno != 0) {
-            //TODO(BT): Throw the same exception error code
-            // that the previous code was using.
-            //socket.mSocket.throwErrnoNative(errno);
-            throw new IOException("Error: " + errno);
-        }
-        return socket;
-    }
-
-    /**
-     * Create a listening, secure RFCOMM Bluetooth socket with Service Record.
-     * <p>A remote device connecting to this socket will be authenticated and
-     * communication on this socket will be encrypted.
-     * <p>Use {@link BluetoothServerSocket#accept} to retrieve incoming
-     * connections from a listening {@link BluetoothServerSocket}.
-     * <p>The system will assign an unused RFCOMM channel to listen on.
-     * <p>The system will also register a Service Discovery
-     * Protocol (SDP) record with the local SDP server containing the specified
-     * UUID, service name, and auto-assigned channel. Remote Bluetooth devices
-     * can use the same UUID to query our SDP server and discover which channel
-     * to connect to. This SDP record will be removed when this socket is
-     * closed, or if this application closes unexpectedly.
-     * <p>Use {@link BluetoothDevice#createRfcommSocketToServiceRecord} to
-     * connect to this socket from another device using the same {@link UUID}.
-     *
-     * @param name service name for SDP record
-     * @param uuid uuid for SDP record
-     * @return a listening RFCOMM BluetoothServerSocket
-     * @throws IOException on error, for example Bluetooth not available, or insufficient
-     * permissions, or channel in use.
-     */
-    @RequiresLegacyBluetoothPermission
-    @RequiresBluetoothConnectPermission
-    @RequiresPermission(android.Manifest.permission.BLUETOOTH_CONNECT)
-    public BluetoothServerSocket listenUsingRfcommWithServiceRecord(String name, UUID uuid)
-            throws IOException {
-        return createNewRfcommSocketAndRecord(name, uuid, true, true);
-    }
-
-    /**
-     * Create a listening, insecure RFCOMM Bluetooth socket with Service Record.
-     * <p>The link key is not required to be authenticated, i.e the communication may be
-     * vulnerable to Person In the Middle attacks. For Bluetooth 2.1 devices,
-     * the link will be encrypted, as encryption is mandatory.
-     * For legacy devices (pre Bluetooth 2.1 devices) the link will not
-     * be encrypted. Use {@link #listenUsingRfcommWithServiceRecord}, if an
-     * encrypted and authenticated communication channel is desired.
-     * <p>Use {@link BluetoothServerSocket#accept} to retrieve incoming
-     * connections from a listening {@link BluetoothServerSocket}.
-     * <p>The system will assign an unused RFCOMM channel to listen on.
-     * <p>The system will also register a Service Discovery
-     * Protocol (SDP) record with the local SDP server containing the specified
-     * UUID, service name, and auto-assigned channel. Remote Bluetooth devices
-     * can use the same UUID to query our SDP server and discover which channel
-     * to connect to. This SDP record will be removed when this socket is
-     * closed, or if this application closes unexpectedly.
-     * <p>Use {@link BluetoothDevice#createRfcommSocketToServiceRecord} to
-     * connect to this socket from another device using the same {@link UUID}.
-     *
-     * @param name service name for SDP record
-     * @param uuid uuid for SDP record
-     * @return a listening RFCOMM BluetoothServerSocket
-     * @throws IOException on error, for example Bluetooth not available, or insufficient
-     * permissions, or channel in use.
-     */
-    @RequiresLegacyBluetoothPermission
-    @RequiresBluetoothConnectPermission
-    @RequiresPermission(android.Manifest.permission.BLUETOOTH_CONNECT)
-    public BluetoothServerSocket listenUsingInsecureRfcommWithServiceRecord(String name, UUID uuid)
-            throws IOException {
-        return createNewRfcommSocketAndRecord(name, uuid, false, false);
-    }
-
-    /**
-     * Create a listening, encrypted,
-     * RFCOMM Bluetooth socket with Service Record.
-     * <p>The link will be encrypted, but the link key is not required to be authenticated
-     * i.e the communication is vulnerable to Person In the Middle attacks. Use
-     * {@link #listenUsingRfcommWithServiceRecord}, to ensure an authenticated link key.
-     * <p> Use this socket if authentication of link key is not possible.
-     * For example, for Bluetooth 2.1 devices, if any of the devices does not have
-     * an input and output capability or just has the ability to display a numeric key,
-     * a secure socket connection is not possible and this socket can be used.
-     * Use {@link #listenUsingInsecureRfcommWithServiceRecord}, if encryption is not required.
-     * For Bluetooth 2.1 devices, the link will be encrypted, as encryption is mandatory.
-     * For more details, refer to the Security Model section 5.2 (vol 3) of
-     * Bluetooth Core Specification version 2.1 + EDR.
-     * <p>Use {@link BluetoothServerSocket#accept} to retrieve incoming
-     * connections from a listening {@link BluetoothServerSocket}.
-     * <p>The system will assign an unused RFCOMM channel to listen on.
-     * <p>The system will also register a Service Discovery
-     * Protocol (SDP) record with the local SDP server containing the specified
-     * UUID, service name, and auto-assigned channel. Remote Bluetooth devices
-     * can use the same UUID to query our SDP server and discover which channel
-     * to connect to. This SDP record will be removed when this socket is
-     * closed, or if this application closes unexpectedly.
-     * <p>Use {@link BluetoothDevice#createRfcommSocketToServiceRecord} to
-     * connect to this socket from another device using the same {@link UUID}.
-     *
-     * @param name service name for SDP record
-     * @param uuid uuid for SDP record
-     * @return a listening RFCOMM BluetoothServerSocket
-     * @throws IOException on error, for example Bluetooth not available, or insufficient
-     * permissions, or channel in use.
-     * @hide
-     */
-    @UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.R, trackingBug = 170729553)
-    @RequiresLegacyBluetoothPermission
-    @RequiresBluetoothConnectPermission
-    @RequiresPermission(android.Manifest.permission.BLUETOOTH_CONNECT)
-    public BluetoothServerSocket listenUsingEncryptedRfcommWithServiceRecord(String name, UUID uuid)
-            throws IOException {
-        return createNewRfcommSocketAndRecord(name, uuid, false, true);
-    }
-
-    @RequiresBluetoothConnectPermission
-    @RequiresPermission(android.Manifest.permission.BLUETOOTH_CONNECT)
-    private BluetoothServerSocket createNewRfcommSocketAndRecord(String name, UUID uuid,
-            boolean auth, boolean encrypt) throws IOException {
-        BluetoothServerSocket socket;
-        socket = new BluetoothServerSocket(BluetoothSocket.TYPE_RFCOMM, auth, encrypt,
-                new ParcelUuid(uuid));
-        socket.setServiceName(name);
-        int errno = socket.mSocket.bindListen();
-        if (errno != 0) {
-            //TODO(BT): Throw the same exception error code
-            // that the previous code was using.
-            //socket.mSocket.throwErrnoNative(errno);
-            throw new IOException("Error: " + errno);
-        }
-        return socket;
-    }
-
-    /**
-     * Construct an unencrypted, unauthenticated, RFCOMM server socket.
-     * Call #accept to retrieve connections to this socket.
-     *
-     * @return An RFCOMM BluetoothServerSocket
-     * @throws IOException On error, for example Bluetooth not available, or insufficient
-     * permissions.
-     * @hide
-     */
-    @RequiresBluetoothConnectPermission
-    @RequiresPermission(android.Manifest.permission.BLUETOOTH_CONNECT)
-    public BluetoothServerSocket listenUsingInsecureRfcommOn(int port) throws IOException {
-        BluetoothServerSocket socket =
-                new BluetoothServerSocket(BluetoothSocket.TYPE_RFCOMM, false, false, port);
-        int errno = socket.mSocket.bindListen();
-        if (port == SOCKET_CHANNEL_AUTO_STATIC_NO_SDP) {
-            socket.setChannel(socket.mSocket.getPort());
-        }
-        if (errno != 0) {
-            //TODO(BT): Throw the same exception error code
-            // that the previous code was using.
-            //socket.mSocket.throwErrnoNative(errno);
-            throw new IOException("Error: " + errno);
-        }
-        return socket;
-    }
-
-    /**
-     * Construct an encrypted, authenticated, L2CAP server socket.
-     * Call #accept to retrieve connections to this socket.
-     * <p>To auto assign a port without creating a SDP record use
-     * {@link #SOCKET_CHANNEL_AUTO_STATIC_NO_SDP} as port number.
-     *
-     * @param port the PSM to listen on
-     * @param mitm enforce person-in-the-middle protection for authentication.
-     * @param min16DigitPin enforce a pin key length og minimum 16 digit for sec mode 2
-     * connections.
-     * @return An L2CAP BluetoothServerSocket
-     * @throws IOException On error, for example Bluetooth not available, or insufficient
-     * permissions.
-     * @hide
-     */
-    @RequiresBluetoothConnectPermission
-    @RequiresPermission(android.Manifest.permission.BLUETOOTH_CONNECT)
-    public BluetoothServerSocket listenUsingL2capOn(int port, boolean mitm, boolean min16DigitPin)
-            throws IOException {
-        BluetoothServerSocket socket =
-                new BluetoothServerSocket(BluetoothSocket.TYPE_L2CAP, true, true, port, mitm,
-                        min16DigitPin);
-        int errno = socket.mSocket.bindListen();
-        if (port == SOCKET_CHANNEL_AUTO_STATIC_NO_SDP) {
-            int assignedChannel = socket.mSocket.getPort();
-            if (DBG) Log.d(TAG, "listenUsingL2capOn: set assigned channel to " + assignedChannel);
-            socket.setChannel(assignedChannel);
-        }
-        if (errno != 0) {
-            //TODO(BT): Throw the same exception error code
-            // that the previous code was using.
-            //socket.mSocket.throwErrnoNative(errno);
-            throw new IOException("Error: " + errno);
-        }
-        return socket;
-    }
-
-    /**
-     * Construct an encrypted, authenticated, L2CAP server socket.
-     * Call #accept to retrieve connections to this socket.
-     * <p>To auto assign a port without creating a SDP record use
-     * {@link #SOCKET_CHANNEL_AUTO_STATIC_NO_SDP} as port number.
-     *
-     * @param port the PSM to listen on
-     * @return An L2CAP BluetoothServerSocket
-     * @throws IOException On error, for example Bluetooth not available, or insufficient
-     * permissions.
-     * @hide
-     */
-    @RequiresBluetoothConnectPermission
-    @RequiresPermission(android.Manifest.permission.BLUETOOTH_CONNECT)
-    public BluetoothServerSocket listenUsingL2capOn(int port) throws IOException {
-        return listenUsingL2capOn(port, false, false);
-    }
-
-    /**
-     * Construct an insecure L2CAP server socket.
-     * Call #accept to retrieve connections to this socket.
-     * <p>To auto assign a port without creating a SDP record use
-     * {@link #SOCKET_CHANNEL_AUTO_STATIC_NO_SDP} as port number.
-     *
-     * @param port the PSM to listen on
-     * @return An L2CAP BluetoothServerSocket
-     * @throws IOException On error, for example Bluetooth not available, or insufficient
-     * permissions.
-     * @hide
-     */
-    @RequiresBluetoothConnectPermission
-    @RequiresPermission(android.Manifest.permission.BLUETOOTH_CONNECT)
-    public BluetoothServerSocket listenUsingInsecureL2capOn(int port) throws IOException {
-        Log.d(TAG, "listenUsingInsecureL2capOn: port=" + port);
-        BluetoothServerSocket socket =
-                new BluetoothServerSocket(BluetoothSocket.TYPE_L2CAP, false, false, port, false,
-                                          false);
-        int errno = socket.mSocket.bindListen();
-        if (port == SOCKET_CHANNEL_AUTO_STATIC_NO_SDP) {
-            int assignedChannel = socket.mSocket.getPort();
-            if (DBG) {
-                Log.d(TAG, "listenUsingInsecureL2capOn: set assigned channel to "
-                        + assignedChannel);
-            }
-            socket.setChannel(assignedChannel);
-        }
-        if (errno != 0) {
-            //TODO(BT): Throw the same exception error code
-            // that the previous code was using.
-            //socket.mSocket.throwErrnoNative(errno);
-            throw new IOException("Error: " + errno);
-        }
-        return socket;
-
-    }
-
-    /**
-     * Read the local Out of Band Pairing Data
-     *
-     * @return Pair<byte[], byte[]> of Hash and Randomizer
-     * @hide
-     */
-    @RequiresLegacyBluetoothPermission
-    @RequiresBluetoothConnectPermission
-    @RequiresPermission(android.Manifest.permission.BLUETOOTH_CONNECT)
-    @SuppressLint("AndroidFrameworkRequiresPermission")
-    public Pair<byte[], byte[]> readOutOfBandData() {
-        return null;
-    }
-
-    /**
-     * Get the profile proxy object associated with the profile.
-     *
-     * <p>Profile can be one of {@link BluetoothProfile#HEADSET}, {@link BluetoothProfile#A2DP},
-     * {@link BluetoothProfile#GATT}, {@link BluetoothProfile#HEARING_AID}, or {@link
-     * BluetoothProfile#GATT_SERVER}. Clients must implement {@link
-     * BluetoothProfile.ServiceListener} to get notified of the connection status and to get the
-     * proxy object.
-     *
-     * @param context Context of the application
-     * @param listener The service Listener for connection callbacks.
-     * @param profile The Bluetooth profile; either {@link BluetoothProfile#HEADSET},
-     * {@link BluetoothProfile#A2DP}, {@link BluetoothProfile#GATT}, {@link
-     * BluetoothProfile#HEARING_AID} or {@link BluetoothProfile#GATT_SERVER}.
-     * @return true on success, false on error
-     */
-    @SuppressLint({
-        "AndroidFrameworkRequiresPermission",
-        "AndroidFrameworkBluetoothPermission"
-    })
-    public boolean getProfileProxy(Context context, BluetoothProfile.ServiceListener listener,
-            int profile) {
-        if (context == null || listener == null) {
-            return false;
-        }
-
-        if (profile == BluetoothProfile.HEADSET) {
-            BluetoothHeadset headset = new BluetoothHeadset(context, listener, this);
-            return true;
-        } else if (profile == BluetoothProfile.A2DP) {
-            BluetoothA2dp a2dp = new BluetoothA2dp(context, listener, this);
-            return true;
-        } else if (profile == BluetoothProfile.A2DP_SINK) {
-            BluetoothA2dpSink a2dpSink = new BluetoothA2dpSink(context, listener, this);
-            return true;
-        } else if (profile == BluetoothProfile.AVRCP_CONTROLLER) {
-            BluetoothAvrcpController avrcp = new BluetoothAvrcpController(context, listener, this);
-            return true;
-        } else if (profile == BluetoothProfile.HID_HOST) {
-            BluetoothHidHost iDev = new BluetoothHidHost(context, listener, this);
-            return true;
-        } else if (profile == BluetoothProfile.PAN) {
-            BluetoothPan pan = new BluetoothPan(context, listener, this);
-            return true;
-        } else if (profile == BluetoothProfile.PBAP) {
-            BluetoothPbap pbap = new BluetoothPbap(context, listener, this);
-            return true;
-        } else if (profile == BluetoothProfile.HEALTH) {
-            Log.e(TAG, "getProfileProxy(): BluetoothHealth is deprecated");
-            return false;
-        } else if (profile == BluetoothProfile.MAP) {
-            BluetoothMap map = new BluetoothMap(context, listener, this);
-            return true;
-        } else if (profile == BluetoothProfile.HEADSET_CLIENT) {
-            BluetoothHeadsetClient headsetClient =
-                    new BluetoothHeadsetClient(context, listener, this);
-            return true;
-        } else if (profile == BluetoothProfile.SAP) {
-            BluetoothSap sap = new BluetoothSap(context, listener, this);
-            return true;
-        } else if (profile == BluetoothProfile.PBAP_CLIENT) {
-            BluetoothPbapClient pbapClient = new BluetoothPbapClient(context, listener, this);
-            return true;
-        } else if (profile == BluetoothProfile.MAP_CLIENT) {
-            BluetoothMapClient mapClient = new BluetoothMapClient(context, listener, this);
-            return true;
-        } else if (profile == BluetoothProfile.HID_DEVICE) {
-            BluetoothHidDevice hidDevice = new BluetoothHidDevice(context, listener, this);
-            return true;
-        } else if (profile == BluetoothProfile.HEARING_AID) {
-            if (isHearingAidProfileSupported()) {
-                BluetoothHearingAid hearingAid = new BluetoothHearingAid(context, listener, this);
-                return true;
-            }
-            return false;
-        } else if (profile == BluetoothProfile.LE_AUDIO) {
-            BluetoothLeAudio leAudio = new BluetoothLeAudio(context, listener, this);
-            return true;
-        } else if (profile == BluetoothProfile.VOLUME_CONTROL) {
-            BluetoothVolumeControl vcs = new BluetoothVolumeControl(context, listener, this);
-            return true;
-        } else if (profile == BluetoothProfile.CSIP_SET_COORDINATOR) {
-            BluetoothCsipSetCoordinator csipSetCoordinator =
-                    new BluetoothCsipSetCoordinator(context, listener, this);
-            return true;
-        } else if (profile == BluetoothProfile.LE_CALL_CONTROL) {
-            BluetoothLeCallControl tbs = new BluetoothLeCallControl(context, listener);
-            return true;
-        } else {
-            return false;
-        }
-    }
-
-    /**
-     * Close the connection of the profile proxy to the Service.
-     *
-     * <p> Clients should call this when they are no longer using
-     * the proxy obtained from {@link #getProfileProxy}.
-     * Profile can be one of  {@link BluetoothProfile#HEADSET} or {@link BluetoothProfile#A2DP}
-     *
-     * @param profile
-     * @param proxy Profile proxy object
-     */
-    @SuppressLint({
-            "AndroidFrameworkRequiresPermission",
-            "AndroidFrameworkBluetoothPermission"
-    })
-    public void closeProfileProxy(int profile, BluetoothProfile proxy) {
-        if (proxy == null) {
-            return;
-        }
-
-        switch (profile) {
-            case BluetoothProfile.HEADSET:
-                BluetoothHeadset headset = (BluetoothHeadset) proxy;
-                headset.close();
-                break;
-            case BluetoothProfile.A2DP:
-                BluetoothA2dp a2dp = (BluetoothA2dp) proxy;
-                a2dp.close();
-                break;
-            case BluetoothProfile.A2DP_SINK:
-                BluetoothA2dpSink a2dpSink = (BluetoothA2dpSink) proxy;
-                a2dpSink.close();
-                break;
-            case BluetoothProfile.AVRCP_CONTROLLER:
-                BluetoothAvrcpController avrcp = (BluetoothAvrcpController) proxy;
-                avrcp.close();
-                break;
-            case BluetoothProfile.HID_HOST:
-                BluetoothHidHost iDev = (BluetoothHidHost) proxy;
-                iDev.close();
-                break;
-            case BluetoothProfile.PAN:
-                BluetoothPan pan = (BluetoothPan) proxy;
-                pan.close();
-                break;
-            case BluetoothProfile.PBAP:
-                BluetoothPbap pbap = (BluetoothPbap) proxy;
-                pbap.close();
-                break;
-            case BluetoothProfile.GATT:
-                BluetoothGatt gatt = (BluetoothGatt) proxy;
-                gatt.close();
-                break;
-            case BluetoothProfile.GATT_SERVER:
-                BluetoothGattServer gattServer = (BluetoothGattServer) proxy;
-                gattServer.close();
-                break;
-            case BluetoothProfile.MAP:
-                BluetoothMap map = (BluetoothMap) proxy;
-                map.close();
-                break;
-            case BluetoothProfile.HEADSET_CLIENT:
-                BluetoothHeadsetClient headsetClient = (BluetoothHeadsetClient) proxy;
-                headsetClient.close();
-                break;
-            case BluetoothProfile.SAP:
-                BluetoothSap sap = (BluetoothSap) proxy;
-                sap.close();
-                break;
-            case BluetoothProfile.PBAP_CLIENT:
-                BluetoothPbapClient pbapClient = (BluetoothPbapClient) proxy;
-                pbapClient.close();
-                break;
-            case BluetoothProfile.MAP_CLIENT:
-                BluetoothMapClient mapClient = (BluetoothMapClient) proxy;
-                mapClient.close();
-                break;
-            case BluetoothProfile.HID_DEVICE:
-                BluetoothHidDevice hidDevice = (BluetoothHidDevice) proxy;
-                hidDevice.close();
-                break;
-            case BluetoothProfile.HEARING_AID:
-                BluetoothHearingAid hearingAid = (BluetoothHearingAid) proxy;
-                hearingAid.close();
-                break;
-            case BluetoothProfile.LE_AUDIO:
-                BluetoothLeAudio leAudio = (BluetoothLeAudio) proxy;
-                leAudio.close();
-                break;
-            case BluetoothProfile.VOLUME_CONTROL:
-                BluetoothVolumeControl vcs = (BluetoothVolumeControl) proxy;
-                vcs.close();
-                break;
-            case BluetoothProfile.CSIP_SET_COORDINATOR:
-                BluetoothCsipSetCoordinator csipSetCoordinator =
-                        (BluetoothCsipSetCoordinator) proxy;
-                csipSetCoordinator.close();
-                break;
-            case BluetoothProfile.LE_CALL_CONTROL:
-                BluetoothLeCallControl tbs = (BluetoothLeCallControl) proxy;
-                tbs.close();
-                break;
-        }
-    }
-
-    private static final IBluetoothManagerCallback sManagerCallback =
-            new IBluetoothManagerCallback.Stub() {
-                public void onBluetoothServiceUp(IBluetooth bluetoothService) {
-                    if (DBG) {
-                        Log.d(TAG, "onBluetoothServiceUp: " + bluetoothService);
-                    }
-
-                    synchronized (sServiceLock) {
-                        sService = bluetoothService;
-                        for (IBluetoothManagerCallback cb : sProxyServiceStateCallbacks.keySet()) {
-                            try {
-                                if (cb != null) {
-                                    cb.onBluetoothServiceUp(bluetoothService);
-                                } else {
-                                    Log.d(TAG, "onBluetoothServiceUp: cb is null!");
-                                }
-                            } catch (Exception e) {
-                                Log.e(TAG, "", e);
-                            }
-                        }
-                    }
-                }
-
-                public void onBluetoothServiceDown() {
-                    if (DBG) {
-                        Log.d(TAG, "onBluetoothServiceDown");
-                    }
-
-                    synchronized (sServiceLock) {
-                        sService = null;
-                        for (IBluetoothManagerCallback cb : sProxyServiceStateCallbacks.keySet()) {
-                            try {
-                                if (cb != null) {
-                                    cb.onBluetoothServiceDown();
-                                } else {
-                                    Log.d(TAG, "onBluetoothServiceDown: cb is null!");
-                                }
-                            } catch (Exception e) {
-                                Log.e(TAG, "", e);
-                            }
-                        }
-                    }
-                }
-
-                public void onBrEdrDown() {
-                    if (VDBG) {
-                        Log.i(TAG, "onBrEdrDown");
-                    }
-
-                    synchronized (sServiceLock) {
-                        for (IBluetoothManagerCallback cb : sProxyServiceStateCallbacks.keySet()) {
-                            try {
-                                if (cb != null) {
-                                    cb.onBrEdrDown();
-                                } else {
-                                    Log.d(TAG, "onBrEdrDown: cb is null!");
-                                }
-                            } catch (Exception e) {
-                                Log.e(TAG, "", e);
-                            }
-                        }
-                    }
-                }
-            };
-
-    private final IBluetoothManagerCallback mManagerCallback =
-            new IBluetoothManagerCallback.Stub() {
-                public void onBluetoothServiceUp(IBluetooth bluetoothService) {
-                    synchronized (mServiceLock.writeLock()) {
-                        mService = bluetoothService;
-                    }
-                    synchronized (mMetadataListeners) {
-                        mMetadataListeners.forEach((device, pair) -> {
-                            try {
-                                mService.registerMetadataListener(mBluetoothMetadataListener,
-                                        device, mAttributionSource);
-                            } catch (RemoteException e) {
-                                Log.e(TAG, "Failed to register metadata listener", e);
-                            }
-                        });
-                    }
-                    synchronized (mBluetoothConnectionCallbackExecutorMap) {
-                        if (!mBluetoothConnectionCallbackExecutorMap.isEmpty()) {
-                            try {
-                                mService.registerBluetoothConnectionCallback(mConnectionCallback,
-                                        mAttributionSource);
-                            } catch (RemoteException e) {
-                                Log.e(TAG, "onBluetoothServiceUp: Failed to register bluetooth"
-                                        + "connection callback", e);
-                            }
-                        }
-                    }
-                }
-
-                public void onBluetoothServiceDown() {
-                    synchronized (mServiceLock.writeLock()) {
-                        mService = null;
-                        if (mLeScanClients != null) {
-                            mLeScanClients.clear();
-                        }
-                        if (mBluetoothLeAdvertiser != null) {
-                            mBluetoothLeAdvertiser.cleanup();
-                        }
-                        if (mBluetoothLeScanner != null) {
-                            mBluetoothLeScanner.cleanup();
-                        }
-                    }
-                }
-
-                public void onBrEdrDown() {
-                }
-            };
-
-    /**
-     * Enable the Bluetooth Adapter, but don't auto-connect devices
-     * and don't persist state. Only for use by system applications.
-     *
-     * @hide
-     */
-    @SystemApi
-    @RequiresLegacyBluetoothAdminPermission
-    @RequiresBluetoothConnectPermission
-    @RequiresPermission(android.Manifest.permission.BLUETOOTH_CONNECT)
-    public boolean enableNoAutoConnect() {
-        if (isEnabled()) {
-            if (DBG) {
-                Log.d(TAG, "enableNoAutoConnect(): BT already enabled!");
-            }
-            return true;
-        }
-        try {
-            return mManagerService.enableNoAutoConnect(mAttributionSource);
-        } catch (RemoteException e) {
-            Log.e(TAG, "", e);
-        }
-        return false;
-    }
-
-    /** @hide */
-    @Retention(RetentionPolicy.SOURCE)
-    @IntDef(value = {
-            BluetoothStatusCodes.ERROR_UNKNOWN,
-            BluetoothStatusCodes.ERROR_BLUETOOTH_NOT_ENABLED,
-            BluetoothStatusCodes.ERROR_ANOTHER_ACTIVE_OOB_REQUEST,
-    })
-    public @interface OobError {}
-
-    /**
-     * Provides callback methods for receiving {@link OobData} from the host stack, as well as an
-     * error interface in order to allow the caller to determine next steps based on the {@code
-     * ErrorCode}.
-     *
-     * @hide
-     */
-    @SystemApi
-    public interface OobDataCallback {
-        /**
-         * Handles the {@link OobData} received from the host stack.
-         *
-         * @param transport - whether the {@link OobData} is generated for LE or Classic.
-         * @param oobData - data generated in the host stack(LE) or controller (Classic)
-         */
-        void onOobData(@Transport int transport, @NonNull OobData oobData);
-
-        /**
-         * Provides feedback when things don't go as expected.
-         *
-         * @param errorCode - the code describing the type of error that occurred.
-         */
-        void onError(@OobError int errorCode);
-    }
-
-    /**
-     * Wraps an AIDL interface around an {@link OobDataCallback} interface.
-     *
-     * @see {@link IBluetoothOobDataCallback} for interface definition.
-     *
-     * @hide
-     */
-    public class WrappedOobDataCallback extends IBluetoothOobDataCallback.Stub {
-        private final OobDataCallback mCallback;
-        private final Executor mExecutor;
-
-        /**
-         * @param callback - object to receive {@link OobData} must be a non null argument
-         *
-         * @throws NullPointerException if the callback is null.
-         */
-        WrappedOobDataCallback(@NonNull OobDataCallback callback,
-                @NonNull @CallbackExecutor Executor executor) {
-            requireNonNull(callback);
-            requireNonNull(executor);
-            mCallback = callback;
-            mExecutor = executor;
-        }
-        /**
-         * Wrapper function to relay to the {@link OobDataCallback#onOobData}
-         *
-         * @param transport - whether the {@link OobData} is generated for LE or Classic.
-         * @param oobData - data generated in the host stack(LE) or controller (Classic)
-         *
-         * @hide
-         */
-        public void onOobData(@Transport int transport, @NonNull OobData oobData) {
-            mExecutor.execute(new Runnable() {
-                public void run() {
-                    mCallback.onOobData(transport, oobData);
-                }
-            });
-        }
-        /**
-         * Wrapper function to relay to the {@link OobDataCallback#onError}
-         *
-         * @param errorCode - the code descibing the type of error that occurred.
-         *
-         * @hide
-         */
-        public void onError(@OobError int errorCode) {
-            mExecutor.execute(new Runnable() {
-                public void run() {
-                    mCallback.onError(errorCode);
-                }
-            });
-        }
-    }
-
-    /**
-     * Fetches a secret data value that can be used for a secure and simple pairing experience.
-     *
-     * <p>This is the Local Out of Band data the comes from the
-     *
-     * <p>This secret is the local Out of Band data.  This data is used to securely and quickly
-     * pair two devices with minimal user interaction.
-     *
-     * <p>For example, this secret can be transferred to a remote device out of band (meaning any
-     * other way besides using bluetooth).  Once the remote device finds this device using the
-     * information given in the data, such as the PUBLIC ADDRESS, the remote device could then
-     * connect to this device using this secret when the pairing sequenece asks for the secret.
-     * This device will respond by automatically accepting the pairing due to the secret being so
-     * trustworthy.
-     *
-     * @param transport - provide type of transport (e.g. LE or Classic).
-     * @param callback - target object to receive the {@link OobData} value.
-     *
-     * @throws NullPointerException if callback is null.
-     * @throws IllegalArgumentException if the transport is not valid.
-     *
-     * @hide
-     */
-    @SystemApi
-    @RequiresBluetoothConnectPermission
-    @RequiresPermission(allOf = {
-            android.Manifest.permission.BLUETOOTH_CONNECT,
-            android.Manifest.permission.BLUETOOTH_PRIVILEGED,
-    })
-    public void generateLocalOobData(@Transport int transport,
-            @NonNull @CallbackExecutor Executor executor, @NonNull OobDataCallback callback) {
-        if (transport != BluetoothDevice.TRANSPORT_BREDR && transport
-                != BluetoothDevice.TRANSPORT_LE) {
-            throw new IllegalArgumentException("Invalid transport '" + transport + "'!");
-        }
-        requireNonNull(callback);
-        if (!isEnabled()) {
-            Log.w(TAG, "generateLocalOobData(): Adapter isn't enabled!");
-            callback.onError(BluetoothStatusCodes.ERROR_BLUETOOTH_NOT_ENABLED);
-        } else {
-            try {
-                mService.generateLocalOobData(transport, new WrappedOobDataCallback(callback,
-                        executor), mAttributionSource);
-            } catch (RemoteException e) {
-                Log.e(TAG, "", e);
-            }
-        }
-    }
-
-    /**
-     * Enable control of the Bluetooth Adapter for a single application.
-     *
-     * <p>Some applications need to use Bluetooth for short periods of time to
-     * transfer data but don't want all the associated implications like
-     * automatic connection to headsets etc.
-     *
-     * <p> Multiple applications can call this. This is reference counted and
-     * Bluetooth disabled only when no one else is using it. There will be no UI
-     * shown to the user while bluetooth is being enabled. Any user action will
-     * override this call. For example, if user wants Bluetooth on and the last
-     * user of this API wanted to disable Bluetooth, Bluetooth will not be
-     * turned off.
-     *
-     * <p> This API is only meant to be used by internal applications. Third
-     * party applications but use {@link #enable} and {@link #disable} APIs.
-     *
-     * <p> If this API returns true, it means the callback will be called.
-     * The callback will be called with the current state of Bluetooth.
-     * If the state is not what was requested, an internal error would be the
-     * reason. If Bluetooth is already on and if this function is called to turn
-     * it on, the api will return true and a callback will be called.
-     *
-     * @param on True for on, false for off.
-     * @param callback The callback to notify changes to the state.
-     * @hide
-     */
-    @RequiresLegacyBluetoothPermission
-    @RequiresBluetoothConnectPermission
-    @RequiresPermission(android.Manifest.permission.BLUETOOTH_CONNECT)
-    @SuppressLint("AndroidFrameworkRequiresPermission")
-    public boolean changeApplicationBluetoothState(boolean on,
-            BluetoothStateChangeCallback callback) {
-        return false;
-    }
-
-    /**
-     * @hide
-     */
-    public interface BluetoothStateChangeCallback {
-        /**
-         * @hide
-         */
-        void onBluetoothStateChange(boolean on);
-    }
-
-    /**
-     * @hide
-     */
-    public class StateChangeCallbackWrapper extends IBluetoothStateChangeCallback.Stub {
-        private BluetoothStateChangeCallback mCallback;
-
-        StateChangeCallbackWrapper(BluetoothStateChangeCallback callback) {
-            mCallback = callback;
-        }
-
-        @Override
-        public void onBluetoothStateChange(boolean on) {
-            mCallback.onBluetoothStateChange(on);
-        }
-    }
-
-    private Set<BluetoothDevice> toDeviceSet(List<BluetoothDevice> devices) {
-        Set<BluetoothDevice> deviceSet = new HashSet<BluetoothDevice>(devices);
-        return Collections.unmodifiableSet(deviceSet);
-    }
-
-    protected void finalize() throws Throwable {
-        try {
-            removeServiceStateCallback(mManagerCallback);
-        } finally {
-            super.finalize();
-        }
-    }
-
-    /**
-     * Validate a String Bluetooth address, such as "00:43:A8:23:10:F0"
-     * <p>Alphabetic characters must be uppercase to be valid.
-     *
-     * @param address Bluetooth address as string
-     * @return true if the address is valid, false otherwise
-     */
-    public static boolean checkBluetoothAddress(String address) {
-        if (address == null || address.length() != ADDRESS_LENGTH) {
-            return false;
-        }
-        for (int i = 0; i < ADDRESS_LENGTH; i++) {
-            char c = address.charAt(i);
-            switch (i % 3) {
-                case 0:
-                case 1:
-                    if ((c >= '0' && c <= '9') || (c >= 'A' && c <= 'F')) {
-                        // hex character, OK
-                        break;
-                    }
-                    return false;
-                case 2:
-                    if (c == ':') {
-                        break;  // OK
-                    }
-                    return false;
-            }
-        }
-        return true;
-    }
-
-    /**
-     * Determines whether a String Bluetooth address, such as "F0:43:A8:23:10:00"
-     * is a RANDOM STATIC address.
-     *
-     * RANDOM STATIC: (addr & 0xC0) == 0xC0
-     * RANDOM RESOLVABLE: (addr &  0xC0) == 0x40
-     * RANDOM non-RESOLVABLE: (addr &  0xC0) == 0x00
-     *
-     * @param address Bluetooth address as string
-     * @return true if the 2 Most Significant Bits of the address equals 0xC0.
-     *
-     * @hide
-     */
-    public static boolean isAddressRandomStatic(@NonNull String address) {
-        requireNonNull(address);
-        return checkBluetoothAddress(address)
-                && (Integer.parseInt(address.split(":")[0], 16) & 0xC0) == 0xC0;
-    }
-
-    /** {@hide} */
-    @UnsupportedAppUsage
-    @RequiresNoPermission
-    public IBluetoothManager getBluetoothManager() {
-        return mManagerService;
-    }
-
-    /** {@hide} */
-    @RequiresNoPermission
-    public AttributionSource getAttributionSource() {
-        return mAttributionSource;
-    }
-
-    @GuardedBy("sServiceLock")
-    private static final WeakHashMap<IBluetoothManagerCallback, Void> sProxyServiceStateCallbacks =
-            new WeakHashMap<>();
-
-    /*package*/ IBluetooth getBluetoothService() {
-        synchronized (sServiceLock) {
-            if (sProxyServiceStateCallbacks.isEmpty()) {
-                throw new IllegalStateException(
-                        "Anonymous service access requires at least one lifecycle in process");
-            }
-            return sService;
-        }
-    }
-
-    @UnsupportedAppUsage
-    /*package*/ IBluetooth getBluetoothService(IBluetoothManagerCallback cb) {
-        Objects.requireNonNull(cb);
-        synchronized (sServiceLock) {
-            sProxyServiceStateCallbacks.put(cb, null);
-            registerOrUnregisterAdapterLocked();
-            return sService;
-        }
-    }
-
-    /*package*/ void removeServiceStateCallback(IBluetoothManagerCallback cb) {
-        Objects.requireNonNull(cb);
-        synchronized (sServiceLock) {
-            sProxyServiceStateCallbacks.remove(cb);
-            registerOrUnregisterAdapterLocked();
-        }
-    }
-
-    /**
-     * Handle registering (or unregistering) a single process-wide
-     * {@link IBluetoothManagerCallback} based on the presence of local
-     * {@link #sProxyServiceStateCallbacks} clients.
-     */
-    @GuardedBy("sServiceLock")
-    private void registerOrUnregisterAdapterLocked() {
-        final boolean isRegistered = sServiceRegistered;
-        final boolean wantRegistered = !sProxyServiceStateCallbacks.isEmpty();
-
-        if (isRegistered != wantRegistered) {
-            if (wantRegistered) {
-                try {
-                    sService = mManagerService.registerAdapter(sManagerCallback);
-                } catch (RemoteException e) {
-                    throw e.rethrowFromSystemServer();
-                }
-            } else {
-                try {
-                    mManagerService.unregisterAdapter(sManagerCallback);
-                    sService = null;
-                } catch (RemoteException e) {
-                    throw e.rethrowFromSystemServer();
-                }
-            }
-            sServiceRegistered = wantRegistered;
-        }
-    }
-
-    /**
-     * Callback interface used to deliver LE scan results.
-     *
-     * @see #startLeScan(LeScanCallback)
-     * @see #startLeScan(UUID[], LeScanCallback)
-     */
-    public interface LeScanCallback {
-        /**
-         * Callback reporting an LE device found during a device scan initiated
-         * by the {@link BluetoothAdapter#startLeScan} function.
-         *
-         * @param device Identifies the remote device
-         * @param rssi The RSSI value for the remote device as reported by the Bluetooth hardware. 0
-         * if no RSSI value is available.
-         * @param scanRecord The content of the advertisement record offered by the remote device.
-         */
-        void onLeScan(BluetoothDevice device, int rssi, byte[] scanRecord);
-    }
-
-    /**
-     * Register a callback to receive events whenever the bluetooth stack goes down and back up,
-     * e.g. in the event the bluetooth is turned off/on via settings.
-     *
-     * If the bluetooth stack is currently up, there will not be an initial callback call.
-     * You can use the return value as an indication of this being the case.
-     *
-     * Callbacks will be delivered on a binder thread.
-     *
-     * @return whether bluetooth is already up currently
-     *
-     * @hide
-     */
-    public boolean registerServiceLifecycleCallback(ServiceLifecycleCallback callback) {
-        return getBluetoothService(callback.mRemote) != null;
-    }
-
-    /**
-     * Unregister a callback registered via {@link #registerServiceLifecycleCallback}
-     *
-     * @hide
-     */
-    public void unregisterServiceLifecycleCallback(ServiceLifecycleCallback callback) {
-        removeServiceStateCallback(callback.mRemote);
-    }
-
-    /**
-     * A callback for {@link #registerServiceLifecycleCallback}
-     *
-     * @hide
-     */
-    public abstract static class ServiceLifecycleCallback {
-
-        /** Called when the bluetooth stack is up */
-        public abstract void onBluetoothServiceUp();
-
-        /** Called when the bluetooth stack is down */
-        public abstract void onBluetoothServiceDown();
-
-        IBluetoothManagerCallback mRemote = new IBluetoothManagerCallback.Stub() {
-            @Override
-            public void onBluetoothServiceUp(IBluetooth bluetoothService) {
-                ServiceLifecycleCallback.this.onBluetoothServiceUp();
-            }
-
-            @Override
-            public void onBluetoothServiceDown() {
-                ServiceLifecycleCallback.this.onBluetoothServiceDown();
-            }
-
-            @Override
-            public void onBrEdrDown() {}
-        };
-    }
-
-    /**
-     * Starts a scan for Bluetooth LE devices.
-     *
-     * <p>Results of the scan are reported using the
-     * {@link LeScanCallback#onLeScan} callback.
-     *
-     * @param callback the callback LE scan results are delivered
-     * @return true, if the scan was started successfully
-     * @deprecated use {@link BluetoothLeScanner#startScan(List, ScanSettings, ScanCallback)}
-     * instead.
-     */
-    @Deprecated
-    @RequiresLegacyBluetoothAdminPermission
-    @RequiresBluetoothScanPermission
-    @RequiresBluetoothLocationPermission
-    @RequiresPermission(android.Manifest.permission.BLUETOOTH_SCAN)
-    public boolean startLeScan(LeScanCallback callback) {
-        return startLeScan(null, callback);
-    }
-
-    /**
-     * Starts a scan for Bluetooth LE devices, looking for devices that
-     * advertise given services.
-     *
-     * <p>Devices which advertise all specified services are reported using the
-     * {@link LeScanCallback#onLeScan} callback.
-     *
-     * @param serviceUuids Array of services to look for
-     * @param callback the callback LE scan results are delivered
-     * @return true, if the scan was started successfully
-     * @deprecated use {@link BluetoothLeScanner#startScan(List, ScanSettings, ScanCallback)}
-     * instead.
-     */
-    @Deprecated
-    @RequiresLegacyBluetoothAdminPermission
-    @RequiresBluetoothScanPermission
-    @RequiresBluetoothLocationPermission
-    @RequiresPermission(android.Manifest.permission.BLUETOOTH_SCAN)
-    public boolean startLeScan(final UUID[] serviceUuids, final LeScanCallback callback) {
-        if (DBG) {
-            Log.d(TAG, "startLeScan(): " + Arrays.toString(serviceUuids));
-        }
-        if (callback == null) {
-            if (DBG) {
-                Log.e(TAG, "startLeScan: null callback");
-            }
-            return false;
-        }
-        BluetoothLeScanner scanner = getBluetoothLeScanner();
-        if (scanner == null) {
-            if (DBG) {
-                Log.e(TAG, "startLeScan: cannot get BluetoothLeScanner");
-            }
-            return false;
-        }
-
-        synchronized (mLeScanClients) {
-            if (mLeScanClients.containsKey(callback)) {
-                if (DBG) {
-                    Log.e(TAG, "LE Scan has already started");
-                }
-                return false;
-            }
-
-            try {
-                IBluetoothGatt iGatt = mManagerService.getBluetoothGatt();
-                if (iGatt == null) {
-                    // BLE is not supported
-                    return false;
-                }
-
-                @SuppressLint("AndroidFrameworkBluetoothPermission")
-                ScanCallback scanCallback = new ScanCallback() {
-                    @Override
-                    public void onScanResult(int callbackType, ScanResult result) {
-                        if (callbackType != ScanSettings.CALLBACK_TYPE_ALL_MATCHES) {
-                            // Should not happen.
-                            Log.e(TAG, "LE Scan has already started");
-                            return;
-                        }
-                        ScanRecord scanRecord = result.getScanRecord();
-                        if (scanRecord == null) {
-                            return;
-                        }
-                        if (serviceUuids != null) {
-                            List<ParcelUuid> uuids = new ArrayList<ParcelUuid>();
-                            for (UUID uuid : serviceUuids) {
-                                uuids.add(new ParcelUuid(uuid));
-                            }
-                            List<ParcelUuid> scanServiceUuids = scanRecord.getServiceUuids();
-                            if (scanServiceUuids == null || !scanServiceUuids.containsAll(uuids)) {
-                                if (DBG) {
-                                    Log.d(TAG, "uuids does not match");
-                                }
-                                return;
-                            }
-                        }
-                        callback.onLeScan(result.getDevice(), result.getRssi(),
-                                scanRecord.getBytes());
-                    }
-                };
-                ScanSettings settings = new ScanSettings.Builder().setCallbackType(
-                        ScanSettings.CALLBACK_TYPE_ALL_MATCHES)
-                        .setScanMode(ScanSettings.SCAN_MODE_LOW_LATENCY)
-                        .build();
-
-                List<ScanFilter> filters = new ArrayList<ScanFilter>();
-                if (serviceUuids != null && serviceUuids.length > 0) {
-                    // Note scan filter does not support matching an UUID array so we put one
-                    // UUID to hardware and match the whole array in callback.
-                    ScanFilter filter =
-                            new ScanFilter.Builder().setServiceUuid(new ParcelUuid(serviceUuids[0]))
-                                    .build();
-                    filters.add(filter);
-                }
-                scanner.startScan(filters, settings, scanCallback);
-
-                mLeScanClients.put(callback, scanCallback);
-                return true;
-
-            } catch (RemoteException e) {
-                Log.e(TAG, "", e);
-            }
-        }
-        return false;
-    }
-
-    /**
-     * Stops an ongoing Bluetooth LE device scan.
-     *
-     * @param callback used to identify which scan to stop must be the same handle used to start the
-     * scan
-     * @deprecated Use {@link BluetoothLeScanner#stopScan(ScanCallback)} instead.
-     */
-    @Deprecated
-    @RequiresLegacyBluetoothAdminPermission
-    @RequiresBluetoothScanPermission
-    @RequiresPermission(android.Manifest.permission.BLUETOOTH_SCAN)
-    public void stopLeScan(LeScanCallback callback) {
-        if (DBG) {
-            Log.d(TAG, "stopLeScan()");
-        }
-        BluetoothLeScanner scanner = getBluetoothLeScanner();
-        if (scanner == null) {
-            return;
-        }
-        synchronized (mLeScanClients) {
-            ScanCallback scanCallback = mLeScanClients.remove(callback);
-            if (scanCallback == null) {
-                if (DBG) {
-                    Log.d(TAG, "scan not started yet");
-                }
-                return;
-            }
-            scanner.stopScan(scanCallback);
-        }
-    }
-
-    /**
-     * Create a secure L2CAP Connection-oriented Channel (CoC) {@link BluetoothServerSocket} and
-     * assign a dynamic protocol/service multiplexer (PSM) value. This socket can be used to listen
-     * for incoming connections. The supported Bluetooth transport is LE only.
-     * <p>A remote device connecting to this socket will be authenticated and communication on this
-     * socket will be encrypted.
-     * <p>Use {@link BluetoothServerSocket#accept} to retrieve incoming connections from a listening
-     * {@link BluetoothServerSocket}.
-     * <p>The system will assign a dynamic PSM value. This PSM value can be read from the {@link
-     * BluetoothServerSocket#getPsm()} and this value will be released when this server socket is
-     * closed, Bluetooth is turned off, or the application exits unexpectedly.
-     * <p>The mechanism of disclosing the assigned dynamic PSM value to the initiating peer is
-     * defined and performed by the application.
-     * <p>Use {@link BluetoothDevice#createL2capChannel(int)} to connect to this server
-     * socket from another Android device that is given the PSM value.
-     *
-     * @return an L2CAP CoC BluetoothServerSocket
-     * @throws IOException on error, for example Bluetooth not available, or insufficient
-     * permissions, or unable to start this CoC
-     */
-    @RequiresLegacyBluetoothPermission
-    @RequiresBluetoothConnectPermission
-    @RequiresPermission(android.Manifest.permission.BLUETOOTH_CONNECT)
-    public @NonNull BluetoothServerSocket listenUsingL2capChannel()
-            throws IOException {
-        BluetoothServerSocket socket =
-                            new BluetoothServerSocket(BluetoothSocket.TYPE_L2CAP_LE, true, true,
-                                      SOCKET_CHANNEL_AUTO_STATIC_NO_SDP, false, false);
-        int errno = socket.mSocket.bindListen();
-        if (errno != 0) {
-            throw new IOException("Error: " + errno);
-        }
-
-        int assignedPsm = socket.mSocket.getPort();
-        if (assignedPsm == 0) {
-            throw new IOException("Error: Unable to assign PSM value");
-        }
-        if (DBG) {
-            Log.d(TAG, "listenUsingL2capChannel: set assigned PSM to "
-                    + assignedPsm);
-        }
-        socket.setChannel(assignedPsm);
-
-        return socket;
-    }
-
-    /**
-     * Create an insecure L2CAP Connection-oriented Channel (CoC) {@link BluetoothServerSocket} and
-     * assign a dynamic PSM value. This socket can be used to listen for incoming connections. The
-     * supported Bluetooth transport is LE only.
-     * <p>The link key is not required to be authenticated, i.e the communication may be vulnerable
-     * to person-in-the-middle attacks. Use {@link #listenUsingL2capChannel}, if an encrypted and
-     * authenticated communication channel is desired.
-     * <p>Use {@link BluetoothServerSocket#accept} to retrieve incoming connections from a listening
-     * {@link BluetoothServerSocket}.
-     * <p>The system will assign a dynamic protocol/service multiplexer (PSM) value. This PSM value
-     * can be read from the {@link BluetoothServerSocket#getPsm()} and this value will be released
-     * when this server socket is closed, Bluetooth is turned off, or the application exits
-     * unexpectedly.
-     * <p>The mechanism of disclosing the assigned dynamic PSM value to the initiating peer is
-     * defined and performed by the application.
-     * <p>Use {@link BluetoothDevice#createInsecureL2capChannel(int)} to connect to this server
-     * socket from another Android device that is given the PSM value.
-     *
-     * @return an L2CAP CoC BluetoothServerSocket
-     * @throws IOException on error, for example Bluetooth not available, or insufficient
-     * permissions, or unable to start this CoC
-     */
-    @RequiresLegacyBluetoothPermission
-    @RequiresBluetoothConnectPermission
-    @RequiresPermission(android.Manifest.permission.BLUETOOTH_CONNECT)
-    public @NonNull BluetoothServerSocket listenUsingInsecureL2capChannel()
-            throws IOException {
-        BluetoothServerSocket socket =
-                            new BluetoothServerSocket(BluetoothSocket.TYPE_L2CAP_LE, false, false,
-                                      SOCKET_CHANNEL_AUTO_STATIC_NO_SDP, false, false);
-        int errno = socket.mSocket.bindListen();
-        if (errno != 0) {
-            throw new IOException("Error: " + errno);
-        }
-
-        int assignedPsm = socket.mSocket.getPort();
-        if (assignedPsm == 0) {
-            throw new IOException("Error: Unable to assign PSM value");
-        }
-        if (DBG) {
-            Log.d(TAG, "listenUsingInsecureL2capChannel: set assigned PSM to "
-                    + assignedPsm);
-        }
-        socket.setChannel(assignedPsm);
-
-        return socket;
-    }
-
-    /**
-     * Register a {@link #OnMetadataChangedListener} to receive update about metadata
-     * changes for this {@link BluetoothDevice}.
-     * Registration must be done when Bluetooth is ON and will last until
-     * {@link #removeOnMetadataChangedListener(BluetoothDevice)} is called, even when Bluetooth
-     * restarted in the middle.
-     * All input parameters should not be null or {@link NullPointerException} will be triggered.
-     * The same {@link BluetoothDevice} and {@link #OnMetadataChangedListener} pair can only be
-     * registered once, double registration would cause {@link IllegalArgumentException}.
-     *
-     * @param device {@link BluetoothDevice} that will be registered
-     * @param executor the executor for listener callback
-     * @param listener {@link #OnMetadataChangedListener} that will receive asynchronous callbacks
-     * @return true on success, false on error
-     * @throws NullPointerException If one of {@code listener}, {@code device} or {@code executor}
-     * is null.
-     * @throws IllegalArgumentException The same {@link #OnMetadataChangedListener} and
-     * {@link BluetoothDevice} are registered twice.
-     * @hide
-     */
-    @SystemApi
-    @RequiresBluetoothConnectPermission
-    @RequiresPermission(allOf = {
-            android.Manifest.permission.BLUETOOTH_CONNECT,
-            android.Manifest.permission.BLUETOOTH_PRIVILEGED,
-    })
-    public boolean addOnMetadataChangedListener(@NonNull BluetoothDevice device,
-            @NonNull Executor executor, @NonNull OnMetadataChangedListener listener) {
-        if (DBG) Log.d(TAG, "addOnMetadataChangedListener()");
-
-        final IBluetooth service = mService;
-        if (service == null) {
-            Log.e(TAG, "Bluetooth is not enabled. Cannot register metadata listener");
-            return false;
-        }
-        if (listener == null) {
-            throw new NullPointerException("listener is null");
-        }
-        if (device == null) {
-            throw new NullPointerException("device is null");
-        }
-        if (executor == null) {
-            throw new NullPointerException("executor is null");
-        }
-
-        synchronized (mMetadataListeners) {
-            List<Pair<OnMetadataChangedListener, Executor>> listenerList =
-                    mMetadataListeners.get(device);
-            if (listenerList == null) {
-                // Create new listener/executor list for registeration
-                listenerList = new ArrayList<>();
-                mMetadataListeners.put(device, listenerList);
-            } else {
-                // Check whether this device was already registed by the lisenter
-                if (listenerList.stream().anyMatch((pair) -> (pair.first.equals(listener)))) {
-                    throw new IllegalArgumentException("listener was already regestered"
-                            + " for the device");
-                }
-            }
-
-            Pair<OnMetadataChangedListener, Executor> listenerPair = new Pair(listener, executor);
-            listenerList.add(listenerPair);
-
-            boolean ret = false;
-            try {
-                ret = service.registerMetadataListener(mBluetoothMetadataListener, device,
-                        mAttributionSource);
-            } catch (RemoteException e) {
-                Log.e(TAG, "registerMetadataListener fail", e);
-            } finally {
-                if (!ret) {
-                    // Remove listener registered earlier when fail.
-                    listenerList.remove(listenerPair);
-                    if (listenerList.isEmpty()) {
-                        // Remove the device if its listener list is empty
-                        mMetadataListeners.remove(device);
-                    }
-                }
-            }
-            return ret;
-        }
-    }
-
-    /**
-     * Unregister a {@link #OnMetadataChangedListener} from a registered {@link BluetoothDevice}.
-     * Unregistration can be done when Bluetooth is either ON or OFF.
-     * {@link #addOnMetadataChangedListener(OnMetadataChangedListener, BluetoothDevice, Executor)}
-     * must be called before unregisteration.
-     *
-     * @param device {@link BluetoothDevice} that will be unregistered. It
-     * should not be null or {@link NullPointerException} will be triggered.
-     * @param listener {@link OnMetadataChangedListener} that will be unregistered. It
-     * should not be null or {@link NullPointerException} will be triggered.
-     * @return true on success, false on error
-     * @throws NullPointerException If {@code listener} or {@code device} is null.
-     * @throws IllegalArgumentException If {@code device} has not been registered before.
-     * @hide
-     */
-    @SystemApi
-    @RequiresBluetoothConnectPermission
-    @RequiresPermission(allOf = {
-            android.Manifest.permission.BLUETOOTH_CONNECT,
-            android.Manifest.permission.BLUETOOTH_PRIVILEGED,
-    })
-    public boolean removeOnMetadataChangedListener(@NonNull BluetoothDevice device,
-            @NonNull OnMetadataChangedListener listener) {
-        if (DBG) Log.d(TAG, "removeOnMetadataChangedListener()");
-        if (device == null) {
-            throw new NullPointerException("device is null");
-        }
-        if (listener == null) {
-            throw new NullPointerException("listener is null");
-        }
-
-        synchronized (mMetadataListeners) {
-            if (!mMetadataListeners.containsKey(device)) {
-                throw new IllegalArgumentException("device was not registered");
-            }
-            // Remove issued listener from the registered device
-            mMetadataListeners.get(device).removeIf((pair) -> (pair.first.equals(listener)));
-
-            if (mMetadataListeners.get(device).isEmpty()) {
-                // Unregister to Bluetooth service if all listeners are removed from
-                // the registered device
-                mMetadataListeners.remove(device);
-                final IBluetooth service = mService;
-                if (service == null) {
-                    // Bluetooth is OFF, do nothing to Bluetooth service.
-                    return true;
-                }
-                try {
-                    return service.unregisterMetadataListener(device, mAttributionSource);
-                } catch (RemoteException e) {
-                    Log.e(TAG, "unregisterMetadataListener fail", e);
-                    return false;
-                }
-            }
-        }
-        return true;
-    }
-
-    /**
-     * This interface is used to implement {@link BluetoothAdapter} metadata listener.
-     * @hide
-     */
-    @SystemApi
-    public interface OnMetadataChangedListener {
-        /**
-         * Callback triggered if the metadata of {@link BluetoothDevice} registered in
-         * {@link #addOnMetadataChangedListener}.
-         *
-         * @param device changed {@link BluetoothDevice}.
-         * @param key changed metadata key, one of BluetoothDevice.METADATA_*.
-         * @param value the new value of metadata as byte array.
-         */
-        void onMetadataChanged(@NonNull BluetoothDevice device, int key,
-                @Nullable byte[] value);
-    }
-
-    @SuppressLint("AndroidFrameworkBluetoothPermission")
-    private final IBluetoothConnectionCallback mConnectionCallback =
-            new IBluetoothConnectionCallback.Stub() {
-        @Override
-        public void onDeviceConnected(BluetoothDevice device) {
-            Attributable.setAttributionSource(device, mAttributionSource);
-            for (Map.Entry<BluetoothConnectionCallback, Executor> callbackExecutorEntry:
-                    mBluetoothConnectionCallbackExecutorMap.entrySet()) {
-                BluetoothConnectionCallback callback = callbackExecutorEntry.getKey();
-                Executor executor = callbackExecutorEntry.getValue();
-                executor.execute(() -> callback.onDeviceConnected(device));
-            }
-        }
-
-        @Override
-        public void onDeviceDisconnected(BluetoothDevice device, int hciReason) {
-            Attributable.setAttributionSource(device, mAttributionSource);
-            for (Map.Entry<BluetoothConnectionCallback, Executor> callbackExecutorEntry:
-                    mBluetoothConnectionCallbackExecutorMap.entrySet()) {
-                BluetoothConnectionCallback callback = callbackExecutorEntry.getKey();
-                Executor executor = callbackExecutorEntry.getValue();
-                executor.execute(() -> callback.onDeviceDisconnected(device, hciReason));
-            }
-        }
-    };
-
-    /**
-     * Registers the BluetoothConnectionCallback to receive callback events when a bluetooth device
-     * (classic or low energy) is connected or disconnected.
-     *
-     * @param executor is the callback executor
-     * @param callback is the connection callback you wish to register
-     * @return true if the callback was registered successfully, false otherwise
-     * @throws IllegalArgumentException if the callback is already registered
-     * @hide
-     */
-    @RequiresBluetoothConnectPermission
-    @RequiresPermission(allOf = {
-            android.Manifest.permission.BLUETOOTH_CONNECT,
-            android.Manifest.permission.BLUETOOTH_PRIVILEGED,
-    })
-    public boolean registerBluetoothConnectionCallback(@NonNull @CallbackExecutor Executor executor,
-            @NonNull BluetoothConnectionCallback callback) {
-        if (DBG) Log.d(TAG, "registerBluetoothConnectionCallback()");
-        if (callback == null) {
-            return false;
-        }
-
-        synchronized (mBluetoothConnectionCallbackExecutorMap) {
-            // If the callback map is empty, we register the service-to-app callback
-            if (mBluetoothConnectionCallbackExecutorMap.isEmpty()) {
-                try {
-                    mServiceLock.readLock().lock();
-                    if (mService != null) {
-                        if (!mService.registerBluetoothConnectionCallback(mConnectionCallback,
-                                mAttributionSource)) {
-                            return false;
-                        }
-                    }
-                } catch (RemoteException e) {
-                    Log.e(TAG, "", e);
-                    mBluetoothConnectionCallbackExecutorMap.remove(callback);
-                } finally {
-                    mServiceLock.readLock().unlock();
-                }
-            }
-
-            // Adds the passed in callback to our map of callbacks to executors
-            if (mBluetoothConnectionCallbackExecutorMap.containsKey(callback)) {
-                throw new IllegalArgumentException("This callback has already been registered");
-            }
-            mBluetoothConnectionCallbackExecutorMap.put(callback, executor);
-        }
-
-        return true;
-    }
-
-    /**
-     * Unregisters the BluetoothConnectionCallback that was previously registered by the application
-     *
-     * @param callback is the connection callback you wish to unregister
-     * @return true if the callback was unregistered successfully, false otherwise
-     * @hide
-     */
-    @RequiresBluetoothConnectPermission
-    @RequiresPermission(allOf = {
-            android.Manifest.permission.BLUETOOTH_CONNECT,
-            android.Manifest.permission.BLUETOOTH_PRIVILEGED,
-    })
-    public boolean unregisterBluetoothConnectionCallback(
-            @NonNull BluetoothConnectionCallback callback) {
-        if (DBG) Log.d(TAG, "unregisterBluetoothConnectionCallback()");
-        if (callback == null) {
-            return false;
-        }
-
-        synchronized (mBluetoothConnectionCallbackExecutorMap) {
-            if (mBluetoothConnectionCallbackExecutorMap.remove(callback) != null) {
-                return false;
-            }
-        }
-
-        if (!mBluetoothConnectionCallbackExecutorMap.isEmpty()) {
-            return true;
-        }
-
-        // If the callback map is empty, we unregister the service-to-app callback
-        try {
-            mServiceLock.readLock().lock();
-            if (mService != null) {
-                return mService.unregisterBluetoothConnectionCallback(mConnectionCallback,
-                        mAttributionSource);
-            }
-        } catch (RemoteException e) {
-            Log.e(TAG, "", e);
-        } finally {
-            mServiceLock.readLock().unlock();
-        }
-
-        return false;
-    }
-
-    /**
-     * This abstract class is used to implement callbacks for when a bluetooth classic or Bluetooth
-     * Low Energy (BLE) device is either connected or disconnected.
-     *
-     * @hide
-     */
-    public abstract static class BluetoothConnectionCallback {
-        /**
-         * Callback triggered when a bluetooth device (classic or BLE) is connected
-         * @param device is the connected bluetooth device
-         */
-        public void onDeviceConnected(BluetoothDevice device) {}
-
-        /**
-         * Callback triggered when a bluetooth device (classic or BLE) is disconnected
-         * @param device is the disconnected bluetooth device
-         * @param reason is the disconnect reason
-         */
-        public void onDeviceDisconnected(BluetoothDevice device, @DisconnectReason int reason) {}
-
-        /**
-         * @hide
-         */
-        @Retention(RetentionPolicy.SOURCE)
-        @IntDef(prefix = { "REASON_" }, value = {
-                BluetoothStatusCodes.ERROR_UNKNOWN,
-                BluetoothStatusCodes.ERROR_DISCONNECT_REASON_LOCAL_REQUEST,
-                BluetoothStatusCodes.ERROR_DISCONNECT_REASON_REMOTE_REQUEST,
-                BluetoothStatusCodes.ERROR_DISCONNECT_REASON_LOCAL,
-                BluetoothStatusCodes.ERROR_DISCONNECT_REASON_REMOTE,
-                BluetoothStatusCodes.ERROR_DISCONNECT_REASON_TIMEOUT,
-                BluetoothStatusCodes.ERROR_DISCONNECT_REASON_SECURITY,
-                BluetoothStatusCodes.ERROR_DISCONNECT_REASON_SYSTEM_POLICY,
-                BluetoothStatusCodes.ERROR_DISCONNECT_REASON_RESOURCE_LIMIT_REACHED,
-                BluetoothStatusCodes.ERROR_DISCONNECT_REASON_CONNECTION_ALREADY_EXISTS,
-                BluetoothStatusCodes.ERROR_DISCONNECT_REASON_BAD_PARAMETERS})
-        public @interface DisconnectReason {}
-
-        /**
-         * Returns human-readable strings corresponding to {@link DisconnectReason}.
-         */
-        public static String disconnectReasonText(@DisconnectReason int reason) {
-            switch (reason) {
-                case BluetoothStatusCodes.ERROR_UNKNOWN:
-                    return "Reason unknown";
-                case BluetoothStatusCodes.ERROR_DISCONNECT_REASON_LOCAL_REQUEST:
-                    return "Local request";
-                case BluetoothStatusCodes.ERROR_DISCONNECT_REASON_REMOTE_REQUEST:
-                    return "Remote request";
-                case BluetoothStatusCodes.ERROR_DISCONNECT_REASON_LOCAL:
-                    return "Local error";
-                case BluetoothStatusCodes.ERROR_DISCONNECT_REASON_REMOTE:
-                    return "Remote error";
-                case BluetoothStatusCodes.ERROR_DISCONNECT_REASON_TIMEOUT:
-                    return "Timeout";
-                case BluetoothStatusCodes.ERROR_DISCONNECT_REASON_SECURITY:
-                    return "Security";
-                case BluetoothStatusCodes.ERROR_DISCONNECT_REASON_SYSTEM_POLICY:
-                    return "System policy";
-                case BluetoothStatusCodes.ERROR_DISCONNECT_REASON_RESOURCE_LIMIT_REACHED:
-                    return "Resource constrained";
-                case BluetoothStatusCodes.ERROR_DISCONNECT_REASON_CONNECTION_ALREADY_EXISTS:
-                    return "Connection already exists";
-                case BluetoothStatusCodes.ERROR_DISCONNECT_REASON_BAD_PARAMETERS:
-                    return "Bad parameters";
-                default:
-                    return "Unrecognized disconnect reason: " + reason;
-            }
-        }
-    }
-
-    /**
-     * Converts old constant of priority to the new for connection policy
-     *
-     * @param priority is the priority to convert to connection policy
-     * @return the equivalent connection policy constant to the priority
-     *
-     * @hide
-     */
-    public static @ConnectionPolicy int priorityToConnectionPolicy(int priority) {
-        switch(priority) {
-            case BluetoothProfile.PRIORITY_AUTO_CONNECT:
-                return BluetoothProfile.CONNECTION_POLICY_ALLOWED;
-            case BluetoothProfile.PRIORITY_ON:
-                return BluetoothProfile.CONNECTION_POLICY_ALLOWED;
-            case BluetoothProfile.PRIORITY_OFF:
-                return BluetoothProfile.CONNECTION_POLICY_FORBIDDEN;
-            case BluetoothProfile.PRIORITY_UNDEFINED:
-                return BluetoothProfile.CONNECTION_POLICY_UNKNOWN;
-            default:
-                Log.e(TAG, "setPriority: Invalid priority: " + priority);
-                return BluetoothProfile.CONNECTION_POLICY_UNKNOWN;
-        }
-    }
-
-    /**
-     * Converts new constant of connection policy to the old for priority
-     *
-     * @param connectionPolicy is the connection policy to convert to priority
-     * @return the equivalent priority constant to the connectionPolicy
-     *
-     * @hide
-     */
-    public static int connectionPolicyToPriority(@ConnectionPolicy int connectionPolicy) {
-        switch(connectionPolicy) {
-            case BluetoothProfile.CONNECTION_POLICY_ALLOWED:
-                return BluetoothProfile.PRIORITY_ON;
-            case BluetoothProfile.CONNECTION_POLICY_FORBIDDEN:
-                return BluetoothProfile.PRIORITY_OFF;
-            case BluetoothProfile.CONNECTION_POLICY_UNKNOWN:
-                return BluetoothProfile.PRIORITY_UNDEFINED;
-        }
-        return BluetoothProfile.PRIORITY_UNDEFINED;
-    }
-}