ArrayList is null after executing onActivityResult

Question

I have Activity > Fragment > RecyclerView .

I am getting data from server in a ArrayList to inflate recyclerView in onCreate() of fragment.

In recyclerView there is Image with which I open camera and click photo.

But when I return after successful image capture, I get my ArrayList null

onCreate in ShipmentFragment :

 ArrayList<ShipmentDetails> shipmentList;

 @Override
public void onCreate(@Nullable Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    shipmentList = getShipmentLists();
}

in activity's onActivityResult :

    @Override
protected void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) {
    super.onActivityResult(requestCode, resultCode, data);

    switch (requestCode) {
        case CAMERA_IMAGE_CAPTURE_REQUEST_CODE:
            if (resultCode == RESULT_OK) {

                ShipmentFragment shipmentFragment = new ShipmentFragment();
                shipmentFragment.entryToList();
            } else {
                Toast.makeText(OrderActivity.this, "Error capturing image", Toast.LENGTH_SHORT).show();
            }

            break;
    }

entryToList() in ShipmentFragment:

public void entryToList() {
    // Here I get shipmentList null
    int size = shipmentList.size();
}