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Description
Describe the bug
Stacktrace provide full description of this bug:
E/MethodChannel#FlutterWebRTC.Method(18109): Failed to handle method call
E/MethodChannel#FlutterWebRTC.Method(18109): java.lang.NullPointerException: Attempt to invoke virtual method 'int java.util.ArrayList.size()' on a null object reference
E/MethodChannel#FlutterWebRTC.Method(18109): at com.cloudwebrtc.webrtc.utils.ConstraintsArray.size(ConstraintsArray.java:19)
E/MethodChannel#FlutterWebRTC.Method(18109): at com.cloudwebrtc.webrtc.FlutterWebRTCPlugin.createIceServers(FlutterWebRTCPlugin.java:470)
E/MethodChannel#FlutterWebRTC.Method(18109): at com.cloudwebrtc.webrtc.FlutterWebRTCPlugin.parseRTCConfiguration(FlutterWebRTCPlugin.java:520)
E/MethodChannel#FlutterWebRTC.Method(18109): at com.cloudwebrtc.webrtc.FlutterWebRTCPlugin.peerConnectionInit(FlutterWebRTCPlugin.java:732)
E/MethodChannel#FlutterWebRTC.Method(18109): at com.cloudwebrtc.webrtc.FlutterWebRTCPlugin.onMethodCall(FlutterWebRTCPlugin.java:174)
E/MethodChannel#FlutterWebRTC.Method(18109): at io.flutter.plugin.common.MethodChannel$IncomingMethodCallHandler.onMessage(MethodChannel.java:231)
E/MethodChannel#FlutterWebRTC.Method(18109): at io.flutter.embedding.engine.dart.DartMessenger.handleMessageFromDart(DartMessenger.java:93)
E/MethodChannel#FlutterWebRTC.Method(18109): at io.flutter.embedding.engine.FlutterJNI.handlePlatformMessage(FlutterJNI.java:642)
E/MethodChannel#FlutterWebRTC.Method(18109): at android.os.MessageQueue.nativePollOnce(Native Method)
E/MethodChannel#FlutterWebRTC.Method(18109): at android.os.MessageQueue.next(MessageQueue.java:326)
E/MethodChannel#FlutterWebRTC.Method(18109): at android.os.Looper.loop(Looper.java:160)
E/MethodChannel#FlutterWebRTC.Method(18109): at android.app.ActivityThread.main(ActivityThread.java:6669)
E/MethodChannel#FlutterWebRTC.Method(18109): at java.lang.reflect.Method.invoke(Native Method)
E/MethodChannel#FlutterWebRTC.Method(18109): at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493)
E/MethodChannel#FlutterWebRTC.Method(18109): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:858)
I/flutter (18109): onError PlatformException(error, Attempt to invoke virtual method 'int java.util.ArrayList.size()' on a null object reference, null)
I/flutter (18109): #0 StandardMethodCodec.decodeEnvelope (package:flutter/src/services/message_codecs.dart:569:7)
I/flutter (18109): #1 MethodChannel.invokeMethod (package:flutter/src/services/platform_channel.dart:321:33)
I/flutter (18109): <asynchronous suspension>
I/flutter (18109): #2 createPeerConnection (package:flutter_webrtc/rtc_peerconnection_factory.dart:18:56)
I/flutter (18109): #3 CallBloc._createPeerConnection (package:webtrit_phone/blocs/call/call_bloc.dart:236:34)
I/flutter (18109): #4 CallBloc._mapCallOutgoingStartedToState (package:webtrit_phone/blocs/call/call_bloc.dart:113:29)
I/flutter (18109): <asynchronous suspension>
I/flutter (18109): #5 CallBloc.mapEventToState (package:webtrit_phone/blocs/call/call_bloc.dart:59:14)
I/flutter (18109): <asynchronous suspension>
I/flutter (18109): #6 Bloc._bindEventsToStates.<anonymous closure> (package:bloc/src/bloc.dart:252:20)
I/flutter (18109): #7 Stream.asyncExpand.onListen.<anonymous closure> (dart:async/stream.dart:576:30)
I/flutter (18109): #8 _rootRunUnary (dart:async/zone.dart:1134:38)
I/flutter (18109): #9 _CustomZone.runUnary (dart:async/zone.dart:1031:19)
I/flutter (18109): #10 _CustomZone.runUnaryGuarded (dart:async/zone.dart:933:7)
I/flutter (18109): #11 _Buff
To Reproduce
To reproduce it is enough to call createPeerConnection with empty (not null) maps:
final peerConnection = await createPeerConnection({}, {});Expected behavior
PeerConnection must be successfully created (for sure it may be not fully operable because of ICE servers absent).
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