Merge "nfc(api): Separate out NfcExtras from nfc APIs (2/2)" into main

    private final NfcAdapter mAdapter;

    final String mPackageName;

    private static INfcAdapterExtras

        getNfcAdapterExtrasInterfaceFromNfcAdapter(NfcAdapter adapter) {

        try {

            Method method = NfcAdapter.class.getDeclaredMethod("getNfcAdapterExtrasInterface");

            method.setAccessible(true);

            return (INfcAdapterExtras) method.invoke(adapter);

        } catch (SecurityException | NoSuchMethodException | IllegalArgumentException

                 | IllegalAccessException | IllegalAccessError | InvocationTargetException e) {

            Log.e(TAG, "Unable to get context from NfcAdapter");

        }

        return null;

    }

    /** get service handles */

    private static void initService(NfcAdapter adapter) {

        final INfcAdapterExtras service = adapter.getNfcAdapterExtrasInterface();

        final INfcAdapterExtras service = getNfcAdapterExtrasInterfaceFromNfcAdapter(adapter);

        if (service != null) {

            // Leave stale rather than receive a null value.

            sService = service;