Unhandled Exception: PlatformException(error, Attempt to invoke virtual method 'int java.lang.Integer.intValue()' on a null object reference, null)

[olegshentz1]

@cloudwebrtc
Hello cloudwebrtc community,

Sometime when connect to webrtc server in android application and try to call I get this error(usually in in OUTGOING state):

Stack Trace:

I/flutter (10382): ##### callState.state => CallStateEnum.STREAM # OUTGOING
I/org.webrtc.Logging(10382): WebRtcAudioRecordExternal: enableBuiltInAEC(false)
I/org.webrtc.Logging(10382): WebRtcAudioEffectsExternal: setAEC(false)
I/org.webrtc.Logging(10382): WebRtcAudioRecordExternal: enableBuiltInNS(true)
I/org.webrtc.Logging(10382): WebRtcAudioEffectsExternal: setNS(true)
I/org.webrtc.Logging(10382): NetworkMonitor: Start monitoring with native observer 540770774080
I/flutter (10382): MediaStreamTrack:enableSpeakerphone false
W/org.webrtc.Logging(10382): NetworkMonitorAutoDetect: Unable to obtain permission to request a cellular network.
I/org.webrtc.Logging(10382): NetworkMonitorAutoDetect: Network becomes available: 100
D/FlutterWebRTCPlugin(10382): onIceGatheringChangeGATHERING
D/FlutterWebRTCPlugin(10382): peerConnectionSetLocalDescription() end
I/org.webrtc.Logging(10382): NetworkMonitorAutoDetect: capabilities changed: [ Transports: WIFI Capabilities: NOT_METERED&INTERNET&NOT_RESTRICTED&TRUSTED&NOT_VPN&VALIDATED&FOREGROUND LinkUpBandwidth>=1048576Kbps LinkDnBandwidth>=1048576Kbps SignalStrength: -45]
E/MethodChannel#FlutterWebRTC.Method(10382): Failed to handle method call
E/MethodChannel#FlutterWebRTC.Method(10382): java.lang.NullPointerException: Attempt to invoke virtual method 'int java.lang.Integer.intValue()' on a null object reference
E/MethodChannel#FlutterWebRTC.Method(10382): at com.cloudwebrtc.webrtc.FlutterWebRTCPlugin.onMethodCall(FlutterWebRTCPlugin.java:358)
E/MethodChannel#FlutterWebRTC.Method(10382): at io.flutter.plugin.common.MethodChannel$IncomingMethodCallHandler.onMessage(MethodChannel.java:231)
E/MethodChannel#FlutterWebRTC.Method(10382): at io.flutter.embedding.engine.dart.DartMessenger.handleMessageFromDart(DartMessenger.java:93)
E/MethodChannel#FlutterWebRTC.Method(10382): at io.flutter.embedding.engine.FlutterJNI.handlePlatformMessage(FlutterJNI.java:642)
E/MethodChannel#FlutterWebRTC.Method(10382): at android.os.MessageQueue.nativePollOnce(Native Method)
E/MethodChannel#FlutterWebRTC.Method(10382): at android.os.MessageQueue.next(MessageQueue.java:325)
E/MethodChannel#FlutterWebRTC.Method(10382): at android.os.Looper.loop(Looper.java:142)
E/MethodChannel#FlutterWebRTC.Method(10382): at android.app.ActivityThread.main(ActivityThread.java:6494)
E/MethodChannel#FlutterWebRTC.Method(10382): at java.lang.reflect.Method.invoke(Native Method)
E/MethodChannel#FlutterWebRTC.Method(10382): at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:440)
E/MethodChannel#FlutterWebRTC.Method(10382): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:807)
I/org.webrtc.Logging(10382): NetworkMonitorAutoDetect: link properties changed: {InterfaceName: wlan0 LinkAddresses: [fe80::20a:f5ff:feb5:bea4/64,192.168.97.40/20,] Routes: [fe80::/64 -> :: wlan0,192.168.96.0/20 -> 0.0.0.0 wlan0,0.0.0.0/0 -> 192.168.96.254 wlan0,] DnsAddresses: [8.8.8.8,] Domains: null MTU: 0 TcpBufferSizes: 524288,2097152,4194304,262144,524288,1048576}
D/FlutterWebRTCPlugin(10382): onIceCandidate
I/chatty (10382): uid=10981(pdac.oleg.widely_app) signaling_threa identical 1 line
D/FlutterWebRTCPlugin(10382): onIceCandidate
E/flutter (10382): [ERROR:flutter/lib/ui/ui_dart_state.cc(157)] Unhandled Exception: PlatformException(error, Attempt to invoke virtual method 'int java.lang.Integer.intValue()' on a null object reference, null)
E/flutter (10382): #0 StandardMethodCodec.decodeEnvelope (package:flutter/src/services/message_codecs.dart:569:7)
E/flutter (10382): #1 MethodChannel._invokeMethod (package:flutter/src/services/platform_channel.dart:156:18)
E/flutter (10382):
E/flutter (10382): #2 MethodChannel.invokeMethod (package:flutter/src/services/platform_channel.dart:329:12)
E/flutter (10382): #3 RTCVideoRenderer.srcObject= (package:flutter_webrtc/rtc_video_view.dart:66:14)
E/flutter (10382): #4 WebrtcBloc._handelStreams (package:widely_app/blocs/webrtcbloc/webrtc_bloc.dart:324:24)
E/flutter (10382): #5 WebrtcBloc.callStateChanged (package:widely_app/blocs/webrtcbloc/webrtc_bloc.dart:135:9)
E/flutter (10382): #6 SIPUAHelper._notifyCallStateListeners. (package:sip_ua/src/sip_ua_helper.dart:388:16)
E/flutter (10382): #7 SetMixin.forEach (dart:collection/set.dart:148:30)
E/flutter (10382): #8 SIPUAHelper._notifyCallStateListeners (package:sip_ua/src/sip_ua_helper.dart:387:27)
E/flutter (10382): #9 SIPUAHelper._options.. (package:sip_ua/src/sip_ua_helper.dart:258:9)
E/flutter (10382): #10 _rootRun (dart:async/zone.dart:1122:38)
E/flutter (10382): #11 _CustomZone.run (dart:async/zone.dart:1023:19)
E/flutter (10382): #12 _CustomZone.runGuarded (dart:async/zone.dart:925:7)
E/flutter (10382): #13 _CustomZone.bindCallbackGuarded. (dart:async/zone.dart:965:23)
E/flutter (10382): #14 _rootRun (dart:async/zone.dart:1126:13)
E/flutter (10382): #15 _CustomZone.run (dart:async/zone.dart:1023:19)
E/flutter (10382): #16 _CustomZone.bindCallback. (dart:async/zone.dart:949:23)
E/flutter (10382): #17 Timer._createTimer. (dart:async-patch/timer_patch.dart:23:15)
E/flutter (10382): #18 _Timer._runTimers (dart:isolate-patch/timer_impl.dart:398:19)
E/flutter (10382): #19 _Timer._handleMessage (dart:isolate-patch/timer_impl.dart:429:5)
E/flutter (10382): #20 _RawReceivePortImpl._handleMessage (dart:isolate-patch/isolate_patch.dart:168:12)
E/flutter (10382):
D/FlutterWebRTCPlugin(10382): onIceCandidate
I/chatty (10382): uid=10981(pdac.oleg.widely_app) signaling_threa identical 2 lines
D/FlutterWebRTCPlugin(10382): onIceCandidate
I/flutter (10382): [2020-04-22 16:19:00.514] Level.debug rtc_session.dart:1620 ::: emit "sdp"
I/flutter (10382): [2020-04-22 16:19:00.522] Level.debug rtc_session.dart:2192 ::: emit "sending" [request]
I/flutter (10382): [2020-04-22 16:19:00.537] Level.debug transport.dart:167 ::: send()
I/flutter (10382): [2020-04-22 16:19:00.546] Level.debug transport.dart:178 ::: sending message:

[ghenry]

Hi,

Can you create a new issue with the Bug template please. There's not enough context here.

Thanks.