How to use

fillInStackTrace

method

in

java.lang.UnsupportedOperationException

@Override
public boolean requestAudioFocus(AudioFocusRequestCompat audioFocusRequestCompat) {
  // Save the focus request.
  mAudioFocusRequestCompat = audioFocusRequestCompat;
  // Check for possible problems...
  if (audioFocusRequestCompat.acceptsDelayedFocusGain()) {
    final String message = "Cannot request delayed focus on API " +
        Build.VERSION.SDK_INT;
    // Make an exception to allow the developer to more easily find this code path.
    @SuppressWarnings("ThrowableNotThrown")
    final Throwable stackTrace = new UnsupportedOperationException(message)
        .fillInStackTrace();
    Log.w(TAG, "Cannot request delayed focus", stackTrace);
  }
  final OnAudioFocusChangeListener listener =
      mAudioFocusRequestCompat.getOnAudioFocusChangeListener();
  final int streamType =
      mAudioFocusRequestCompat.getAudioAttributesCompat().getLegacyStreamType();
  final int focusGain = mAudioFocusRequestCompat.getFocusGain();
  return mAudioManager.requestAudioFocus(listener, streamType, focusGain) ==
      AudioManager.AUDIOFOCUS_REQUEST_GRANTED;
}