2019-12-11 17:01:01.242 32555-14498/com.anyconnect.sampleapp E/BluetoothChatService: disconnected
    java.io.IOException: bt socket closed, read return: -1
        at android.bluetooth.BluetoothSocket.read(BluetoothSocket.java:574)
        at android.bluetooth.BluetoothInputStream.read(BluetoothInputStream.java:96)
        at java.io.InputStream.read(InputStream.java:101)
        at com.anyconnect.sampleapp.ui.bluetooth.BluetoothChatService$ConnectedThread.run(BluetoothChatService.java:547)
2019-12-11 17:01:01.245 32555-32555/com.anyconnect.sampleapp E/App: BLUETOOTH_DISCONNECTED: Receive: BLUETOOTH_DISCONNECTED: bt socket closed, read return: -1
    sender: [B8:27:EB:86:92:DB][AnyConnectAICamera]
    receiver: [2811][Fabliha]

    Module: App
    Severity: error
    Summary: bluetooth connection lost
    Type: PAIRING
    pushTime: 18446744073518615229