Help finding cause of gson exception error

[sn4k3]

I have a banking app that is unable to work (Infinite progress loading while waiting for confirmation sms text which I never got), it does work on my old Samsung and Xiaomi phone, but on my new vivo x200U it does not (Using same apk version).
I have collected the logcat which I send to support email but they say "We can't replicate your problem".
By looking at it the problem occurs in this library but is getting the exception from AndroidRuntime?
My question is in order to understand if the problem in on my system (Android) or App itself, knowing that it work on my other two smartphones but not on this new one.
APK

07-04 01:37:45.049  9361 10653 E AndroidRuntime:        at com.google.gson.internal.bind.TypeAdapterRuntimeTypeWrapper.write(TypeAdapterRuntimeTypeWrapper.java:17)
07-04 01:37:45.049  9361 10653 E AndroidRuntime:        at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$1.write(ReflectiveTypeAdapterFactory.java:4)
07-04 01:37:45.049  9361 10653 E AndroidRuntime:        at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$Adapter.write(ReflectiveTypeAdapterFactory.java:10)
07-04 01:37:45.049  9361 10653 E AndroidRuntime:        at com.google.gson.internal.bind.TypeAdapterRuntimeTypeWrapper.write(TypeAdapterRuntimeTypeWrapper.java:17)
07-04 01:37:45.049  9361 10653 E AndroidRuntime:        at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$1.write(ReflectiveTypeAdapterFactory.java:4)
07-04 01:37:45.049  9361 10653 E AndroidRuntime:        at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$Adapter.write(ReflectiveTypeAdapterFactory.java:10)
07-04 01:37:45.049  9361 10653 E AndroidRuntime:        at com.google.gson.internal.bind.TypeAdapterRuntimeTypeWrapper.write(TypeAdapterRuntimeTypeWrapper.java:17)
07-04 01:37:45.049  9361 10653 E AndroidRuntime:        at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$1.write(ReflectiveTypeAdapterFactory.java:4)
07-04 01:37:45.049  9361 10653 E AndroidRuntime:        at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$Adapter.write(ReflectiveTypeAdapterFactory.java:10)
07-04 01:37:45.049  9361 10653 E AndroidRuntime:        at com.google.gson.internal.bind.TypeAdapterRuntimeTypeWrapper.write(TypeAdapterRuntimeTypeWrapper.java:17)
07-04 01:37:45.049  9361 10653 E AndroidRuntime:        at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$1.write(ReflectiveTypeAdapterFactory.java:4)
07-04 01:37:45.049  9361 10653 E AndroidRuntime:        at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$Adapter.write(ReflectiveTypeAdapterFactory.java:10)
07-04 01:37:45.049  9361 10653 E AndroidRuntime:        at com.google.gson.internal.bind.TypeAdapterRuntimeTypeWrapper.write(TypeAdapterRuntimeTypeWrapper.java:17)
07-04 01:37:45.049  9361 10653 E AndroidRuntime:        at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$1.write(ReflectiveTypeAdapterFactory.java:4)
07-04 01:37:45.049  9361 10653 E AndroidRuntime:        at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$Adapter.write(ReflectiveTypeAdapterFactory.java:10)
07-04 01:37:45.049  9361 10653 E AndroidRuntime:        at com.google.gson.internal.bind.TypeAdapterRuntimeTypeWrapper.write(TypeAdapterRuntimeTypeWrapper.java:17)
07-04 01:37:45.049  9361 10653 E AndroidRuntime:        at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$1.write(ReflectiveTypeAdapterFactory.java:4)
07-04 01:37:45.049  9361 10653 E AndroidRuntime:        at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$Adapter.write(ReflectiveTypeAdapterFactory.java:10)
07-04 01:37:45.049  9361 10653 E AndroidRuntime:        at com.google.gson.internal.bind.TypeAdapterRuntimeTypeWrapper.write(TypeAdapterRuntimeTypeWrapper.java:17)
07-04 01:37:45.049  9361 10653 E AndroidRuntime:        at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$1.write(ReflectiveTypeAdapterFactory.java:4)
07-04 01:37:45.049  9361 10653 E AndroidRuntime:        at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$Adapter.write(ReflectiveTypeAdapterFactory.java:10)
07-04 01:37:45.049  9361 10653 E AndroidRuntime:        at com.google.gson.internal.bind.TypeAdapterRuntimeTypeWrapper.write(TypeAdapterRuntimeTypeWrapper.java:17)
07-04 01:37:45.049  9361 10653 E AndroidRuntime:        at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$1.write(ReflectiveTypeAdapterFactory.java:4)
07-04 01:37:45.049  9361 10653 E AndroidRuntime:        at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$Adapter.write(ReflectiveTypeAdapterFactory.java:10)
07-04 01:37:45.049  9361 10653 E AndroidRuntime:        at com.google.gson.Gson.toJson(Gson.java:22)
07-04 01:37:45.049  9361 10653 E AndroidRuntime:        at com.google.gson.Gson.toJson(Gson.java:11)
07-04 01:37:45.049  9361 10653 E AndroidRuntime:        at com.google.gson.Gson.toJson(Gson.java:5)
07-04 01:37:45.049  9361 10653 E AndroidRuntime:        at com.google.gson.Gson.toJson(Gson.java:3)
07-04 01:37:45.049  9361 10653 E AndroidRuntime:        at sibs.connector.helpers.JsonParser.toJson(JsonParser.java:6)
07-04 01:37:45.049  9361 10653 E AndroidRuntime:        at sibs.connector.core.ConnectorHandler._callback(ConnectorHandler.java:39)
07-04 01:37:45.049  9361 10653 E AndroidRuntime:        at sibs.connector.core.ConnectorHandler.callback(ConnectorHandler.java:1)
07-04 01:37:45.049  9361 10653 E AndroidRuntime:        at sibs.connector.core.ConnectorHandler.nativeProcessService(Native Method)
07-04 01:37:45.049  9361 10653 E AndroidRuntime:        at sibs.connector.core.ConnectorHandler.processService(ConnectorHandler.java:1)
07-04 01:37:45.049  9361 10653 E AndroidRuntime:        at sibs.intra.sw.mbwaysdk.implementation.ConnectorHandlerMBWay.processService(ConnectorHandlerMBWay.java:1)
07-04 01:37:45.049  9361 10653 E AndroidRuntime:        at o.d.a(MBWayPrivateServiceImpl.java:24)
07-04 01:37:45.049  9361 10653 E AndroidRuntime:        at l.u1.run(MBWayRegisterServiceImpl.java:22)
07-04 01:37:45.049  9361 10653 E AndroidRuntime:        at java.lang.Thread.run(Thread.java:1042)

[Marcono1234]

It seems the exception stack trace you provided is incomplete, there should be more lines above the at com.google.gson.internal.bind ... ones. Could you please include it up to the first line where Gson (or code called by Gson) threw the exception?

[sn4k3]

I've edited the post and included the output I got from powershell, its a large file with a huge spam of identical lines.

[Marcono1234]

Thanks! The final exception is a StackOverflowError:

07-04 01:41:58.517 15200 16275 E AndroidRuntime: java.lang.StackOverflowError: stack size 1037KB
07-04 01:41:58.517 15200 16275 E AndroidRuntime: 	at java.lang.reflect.Field.get(Native Method)
07-04 01:41:58.517 15200 16275 E AndroidRuntime: 	at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$1.writeField(ReflectiveTypeAdapterFactory.java:2)
07-04 01:41:58.517 15200 16275 E AndroidRuntime: 	at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$Adapter.write(ReflectiveTypeAdapterFactory.java:8)
07-04 01:41:58.517 15200 16275 E AndroidRuntime: 	at com.google.gson.Gson$FutureTypeAdapter.write(Gson.java:4)
07-04 01:41:58.517 15200 16275 E AndroidRuntime: 	at com.google.gson.internal.bind.TypeAdapterRuntimeTypeWrapper.write(TypeAdapterRuntimeTypeWrapper.java:17)
07-04 01:41:58.517 15200 16275 E AndroidRuntime: 	at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$1.write(ReflectiveTypeAdapterFactory.java:4)
...

Without the source code of the app it is difficult to tell the cause for this. Since this happens during serialization, most likely there is a reference cycle in the serialized data. If this only happens on some Android devices, maybe the code is serializing a class which is part of the Android framework and differs between Android versions? (just a guess though)

(To be safe, maybe delete the attached log file again and remove the entry from the edit history in case it contains any sensitive information.)

[sn4k3]

I can't tell either, it's strange since using same apk.
Working phone is Samsung A52 5G (Android 14 - OneUI)
Not working phone is Vivo X200U (Android 15 - OriginOS - Not global, CN rom)

The app opens, but stays loading forever waiting for SMS confirmation that never came (This is first app launch setup). Note that is not a sms problem since app offer alternative QR code setup using a old device and same infinite waiting happens.
If I quit and reopen app it will ask again for my number but this time stays on early screen nothing going further step of waiting for SMS. If I clean app data it then redo the problem from begin.
This is a app to pay via phone number or NFC at store terminals.
Then my bank app also have the same service built in, the banking app works however as soon I click on mbway service under bank app, it crash application. Note that banking app doesn't require mbway instaled, it's independent, so different apks.

Unfortonally I dont know anyone with same phone in my country to ask for it.

[sn4k3]

I was able to find the problem, it was caused by Tasker with Hidden access API

[Marcono1234]

Thanks for following up on this and linking the Tasker issue!