NPE at !detectedCountry.equals(selectedCountry)

[otopba]

detectedCountry can be null. But in line !detectedCountry.equals(selectedCountry) we use it

 @Override
                    public void onTextChanged(CharSequence s, int start, int before, int count) {
                        CCPCountry selectedCountry = getSelectedCountry();
                        if (selectedCountry != null && (lastCheckedNumber == null || !lastCheckedNumber.equals(s.toString())) && countryDetectionBasedOnAreaAllowed) {
                            //possible countries
                            if (currentCountryGroup != null) {
                                String enteredValue = getEditText_registeredCarrierNumber().getText().toString();
                                if (enteredValue.length() >= currentCountryGroup.areaCodeLength) {
                                    String digitsValue = PhoneNumberUtil.normalizeDigitsOnly(enteredValue);
                                    if (digitsValue.length() >= currentCountryGroup.areaCodeLength) {
                                        String currentAreaCode = digitsValue.substring(0, currentCountryGroup.areaCodeLength);
                                        if (!currentAreaCode.equals(lastCheckedAreaCode)) {
                                            CCPCountry detectedCountry = currentCountryGroup.getCountryForAreaCode(context, getLanguageToApply(), currentAreaCode);
                                            if (!detectedCountry.equals(selectedCountry)) {
                                                countryChangedDueToAreaCode = true;
                                                lastCursorPosition = Selection.getSelectionEnd(s);
                                                setSelectedCountry(detectedCountry);
                                            }
                                            lastCheckedAreaCode = currentAreaCode;
                                        }
                                    }
                                }
                            }
                            lastCheckedNumber = s.toString();
                        }
                    }