How to solve null pointer exception

Question

I am using the code below to get the current location of an individual both the longitude and latitude values

LocationManager locationManager = (LocationManager) getSystemService(LOCATION_SERVICE);
    Criteria criteria = new Criteria();

    assert locationManager != null;
    Location location1 = locationManager.getLastKnownLocation(Objects.requireNonNull(locationManager.getBestProvider(criteria, true)));
    Geocoder geocoder=new Geocoder(getBaseContext(), Locale.getDefault());
    List<Address> addresses;

    try {
        addresses=geocoder.getFromLocation(Objects.requireNonNull(location1).getLatitude(),Objects.requireNonNull(location1).getLongitude(),1);
        if(addresses.size()>0){
            location.setText(addresses.get(0).getLocality());
        }
    } catch (IOException e) {
        e.printStackTrace();
    }

when i run the app , it crashes and when i check the debugger it shows

Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.Class java.lang.Object.getClass()' on a null object reference

This error is at a line after the try method opening bracket and i have tried to avoid getting null values using the refractors available but my app still crashes. some assistance would be nice on how to overcome this problem. Thank you

You need to check and see if `location1` is `null`. Beyond that, as noted, please edit your question and provide the complete stack trace. — CommonsWare, Jun 20 '19 at 15:01
Possible duplicate of [What is a NullPointerException, and how do I fix it?](https://stackoverflow.com/questions/218384/what-is-a-nullpointerexception-and-how-do-i-fix-it) — Gustavo Pagani, Jun 24 '19 at 09:59

How to solve null pointer exception

0 Answers0