Exception handling in flutter + VS Code - flutter

Question

I have a simple functionality for user authentication. When user clicks Login buttonm than callback calls login method from SecurityBloc which in its turn calls execute method of ApiProvider.
If user enter wrong password than method _handleResponse throws ApiException with error description which I am expecting to be catched in method login of SecurityBloc. And it works as expected when I run project under the web. I see snackbar with error message.
The problem occurred when I run project under Android. When user enter wrong password than VS Code (I use it) stops on line with throw ApiException('invalid authentication response');, i.e. debugger thinks that this exception is unhandled! But it is catched and handled (see code). When I click button continue on debugger control panel, the highlighted row jumps over the code and at the end I see the error message in snackbar.
So is it possible to skip (fix) this situation? Maybe is it knowing bug and there is a workaround?
P.S. If I checked off the "Uncaught exception" checkbox looks fine but it is not the case because now I may pass really uncaucht exceptions.
Any ideas?
class ApiProvider {
/// Executes HTTP request
Map<String, dynamic> execute(url, query, ...) async {
final response = await http.post(url,query:query);
return _handleResponse(response);
}
/// Parses HTTP response
Map<String, dynamic> _handleResponse(Response response) {
if (!response.contains('user')) {
throw ApiException('invalid password');
}
... // other statements
}
}
class SecurityBloc {
Future<AuthEvent> login(String user, String password) async {
try {
final data = api.execute()
if (data == null) {
throw ApiException('invalid authentication response');
}
final token = _parseData(data); // Can throws FormatException
return AuthEvent.ok(token);
} on ClientException catch(e) {
return AuthEvent.error(e.message);
} on FormatException catch(e) {
return AuthEvent.error(e.message);
} on ApiException catch(e) {
return AuthEvent.error(e.message);
}
}
}
class _LoginState extends State<Login> {
final securityBloc = SecutiryBloc();
#override
Widget build(BuildContext context) {
return
...
FlatButton(
child: Text('Login'),
onPressed: () async {
final authEvent = await securityBloc.login(...);
if (authEvent.failed) {
ScaffoldMessenger.of(context).showSnackbar(...); // Show authentication error
} else {
// access granted
}
},
),
...
}

Answer 1

Please see this https://github.com/FirebaseExtended/flutterfire/issues/3475 that I raised...if you follow the thread and the link at the end it would appear a fix was posted to master in early October....don't know when it will make it through the releases to stable. Basically though, this is an issue that impacts the IDE and won't manifest itself in the released app on a device.