android bluetooth connection fails after 489 successful connections

Question

unfortunately, I have some problems with android\'s bluetooth. For my test environment I use a Nexus 4 with Android 4.4.2.

I have a Java Application on my PC, which

Answer 1

My fix for the question i have asked:

private synchronized void clearFileDescriptor(){
        try{
            Field field = BluetoothSocket.class.getDeclaredField("mPfd");
            field.setAccessible(true);
            ParcelFileDescriptor mPfd = (ParcelFileDescriptor)field.get(socket);
            if(null == mPfd){
                return;
            }
            mPfd.close();
        }catch(Exception e){
            Log.w(SensorTicker.TAG, "ParcelFileDescriptor could not be cleanly closed.");
        }
    }

So above is the method i have written to close the filedescriptor, and the below when i have used this code: Whenever, socket has to be close:

private synchronized void cleanClose() {
        if (socket != null) {
            try {
                clearFileDescriptor();
                //clearLocalSocket();
                socket.close();         
            }
            catch (IOException e) {
                Log.w(SensorTicker.TAG, "Socket could not be cleanly closed.");
            }
        }
    }

I have also tried with the clearLocalSocket() method i have written, but no used for my problem. So i tried to close the FileDescriptor. Hope it will help you and others facing the same issue.