AudioAttributes attributes = new AudioAttributes.Builder().setContentType(AUDIO_CONTENT_TYPE_MUSIC).build();

    ExoPlayer player = new ExoPlayer.Builder(App.context)
            .setAudioAttributes(attributes, false)
            .build();
    player.setAudioSessionId(audioSessionId);
    player.setWakeMode(WAKE_MODE_NETWORK);
    player.setVolume(1f);
    player.setPlayWhenReady(true);


    player.addListener(new Player.Listener() {
        public void onPlaybackStateChanged(int state) {
            //print states or put a breakpoint here
        }
        @Override
        public void onPlayerError(@NonNull PlaybackException error) {
            //print error or put a breakpoint here
        }
    });
    player.setMediaItem(mediaItem); //use the clip I attached to the bug report
    player.prepare();