Android: NullPointerException at Microsoft.Maui.Authentication.WebAuthenticatorIntermediateActivity.OnResume()

[WhoeverReadsThisIsStupid]

Description

For now only seen on an Android Emulator: I get crashes of my relatively complex App If I put it in the background and put it back in the foreground. This happens inconsitently so I assume it's some race condition or something.

When searched I found the following stackoverflow entry: https://stackoverflow.com/questions/38041230/intent-migrateextrastreamtoclipdata-on-a-null-object-reference
This is the closest to my issue I found and according to this it seems an easy fix.

For more information this is the output of my terminal for dotnet workload list:

SDK-Version: 9.0.301

Installierte Workload-ID Manifestversion Installationsquelle

android 35.0.78/9.0.100 VS 17.14.36221.1
ios 18.5.9199/9.0.100 VS 17.14.36221.1
maccatalyst 18.5.9199/9.0.100 VS 17.14.36221.1
maui-windows 9.0.51/9.0.100 VS 17.14.36221.1

Although my app is still build with target framework .Net8 not sure if this is relevant for this particular issue.

Steps to Reproduce

Since this problem happens inconsitently I am not sure what exactly is the reason for it.
But I have an app with multiple pages and also a WebView I am not sure tho if this is required and here is one way I go the crash:

1. Open App.
2. Navigate to a page with a WebView.
3. Put the app in the background and open any other app. (Chrome in my case.)
4. Go back to own app.
5. See crash.

Link to public reproduction project repository

No response

Version with bug

.NET 8 (Out of support, please specify exact version)

Is this a regression from previous behavior?

Not sure, did not test other versions

Last version that worked well

Unknown/Other

Affected platforms

Android

Affected platform versions

Android 14 and up, testet on multiple different emulators.

Did you find any workaround?

This issue is inconsitent but for now I could only reproduce it on an emulator not actual phones.

Relevant log output

+Java.Lang.NullPointerException: Attempt to invoke virtual method 'boolean android.content.Intent.migrateExtraStreamToClipData(android.content.Context)' on a null object reference Java.Lang.NullPointerException: Attempt to invoke virtual method 'boolean android.content.Intent.migrateExtraStreamToClipData(android.content.Context)' on a null object reference
   at Java.Interop.JniEnvironment.InstanceMethods.CallNonvirtualVoidMethod(JniObjectReference instance, JniObjectReference type, JniMethodInfo method, JniArgumentValue* args)
   at Java.Interop.JniPeerMembers.JniInstanceMethods.InvokeVirtualVoidMethod(String encodedMember, IJavaPeerable self, JniArgumentValue* parameters)
   at Android.Content.ContextWrapper.StartActivity(Intent intent)
   at Microsoft.Maui.Authentication.WebAuthenticatorIntermediateActivity.OnResume()
   at Android.App.Activity.n_OnResume(IntPtr jnienv, IntPtr native__this)
   at Android.Runtime.JNINativeWrapper.Wrap_JniMarshal_PP_V(_JniMarshal_PP_V callback, IntPtr jnienv, IntPtr klazz)
  --- End of managed Java.Lang.NullPointerException stack trace ---
java.lang.NullPointerException: Attempt to invoke virtual method 'boolean android.content.Intent.migrateExtraStreamToClipData(android.content.Context)' on a null object reference
\tat android.app.Instrumentation.execStartActivity(Instrumentation.java:1832)
\tat android.app.Activity.startActivityForResult(Activity.java:5471)
\tat android.app.Activity.startActivityForResult(Activity.java:5429)
\tat android.app.Activity.startActivity(Activity.java:5927)
\tat android.app.Activity.startActivity(Activity.java:5894)
\tat crc6468b6408a11370c2f.WebAuthenticatorIntermediateActivity.n_onResume(Native Method)
\tat crc6468b6408a11370c2f.WebAuthenticatorIntermediateActivity.onResume(WebAuthenticatorIntermediateActivity.java:41)
\tat android.app.Instrumentation.callActivityOnResume(Instrumentation.java:1564)
\tat android.app.Activity.performResume(Activity.java:8437)
\tat android.app.ActivityThread.performResumeActivity(ActivityThread.java:4763)
\tat android.app.ActivityThread.handleResumeActivity(ActivityThread.java:4806)
\tat android.app.servertransaction.ResumeActivityItem.execute(ResumeActivityItem.java:54)
\tat android.app.servertransaction.ActivityTransactionItem.execute(ActivityTransactionItem.java:45)
\tat android.app.servertransaction.TransactionExecutor.executeLifecycleState(TransactionExecutor.java:176)
\tat android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:97)
\tat android.app.ActivityThread$H.handleMessage(ActivityThread.java:2307)
\tat android.os.Handler.dispatchMessage(Handler.java:106)
\tat android.os.Looper.loopOnce(Looper.java:201)
\tat android.os.Looper.loop(Looper.java:288)
\tat android.app.ActivityThread.main(ActivityThread.java:7872)
\tat java.lang.reflect.Method.invoke(Native Method)
\tat com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:548)
\tat com.android.internal.os.ZygoteInit.main(ZygoteInit.java:936)

  --- End of managed Java.Lang.NullPointerException stack trace ---
java.lang.NullPointerException: Attempt to invoke virtual method 'boolean android.content.Intent.migrateExtraStreamToClipData(android.content.Context)' on a null object reference
\tat android.app.Instrumentation.execStartActivity(Instrumentation.java:1832)
\tat android.app.Activity.startActivityForResult(Activity.java:5471)
\tat android.app.Activity.startActivityForResult(Activity.java:5429)
\tat android.app.Activity.startActivity(Activity.java:5927)
\tat android.app.Activity.startActivity(Activity.java:5894)
\tat crc6468b6408a11370c2f.WebAuthenticatorIntermediateActivity.n_onResume(Native Method)
\tat crc6468b6408a11370c2f.WebAuthenticatorIntermediateActivity.onResume(WebAuthenticatorIntermediateActivity.java:41)
\tat android.app.Instrumentation.callActivityOnResume(Instrumentation.java:1564)
\tat android.app.Activity.performResume(Activity.java:8437)
\tat android.app.ActivityThread.performResumeActivity(ActivityThread.java:4763)
\tat android.app.ActivityThread.handleResumeActivity(ActivityThread.java:4806)
\tat android.app.servertransaction.ResumeActivityItem.execute(ResumeActivityItem.java:54)
\tat android.app.servertransaction.ActivityTransactionItem.execute(ActivityTransactionItem.java:45)
\tat android.app.servertransaction.TransactionExecutor.executeLifecycleState(TransactionExecutor.java:176)
\tat android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:97)
\tat android.app.ActivityThread$H.handleMessage(ActivityThread.java:2307)
\tat android.os.Handler.dispatchMessage(Handler.java:106)
\tat android.os.Looper.loopOnce(Looper.java:201)
\tat android.os.Looper.loop(Looper.java:288)
\tat android.app.ActivityThread.main(ActivityThread.java:7872)
\tat java.lang.reflect.Method.invoke(Native Method)
\tat com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:548)
\tat com.android.internal.os.ZygoteInit.main(ZygoteInit.java:936)

[holecekp]

I have the same problem in production in the latest MAUI 9.0.81 and it's also reported for the previous version that uses MAUI 9.0.80. It's very strange because the app doesn't use WebView or anything else that would use Internet connectivity with the exception for AppCenter.Crashes for the crash reporting. It reports that the app crashed after 0 seconds so it's a startup crash. I cannot reproduce it locally. But it's a MAUI issue because I migrated the app from Xamarin.Forms and the crash started to appear only I've started rollout of the new version migrated to MAUI on Google Play.

The exception was:

Java.Lang.NullPointerException: Attempt to invoke virtual method 'boolean android.content.Intent.migrateExtraStreamToClipData(android.content.Context)' on a null object reference
  at Java.Interop.JniEnvironment.InstanceMethods.CallNonvirtualVoidMethod(JniObjectReference instance, JniObjectReference type, JniMethodInfo method, JniArgumentValue* args)
  at Java.Interop.JniPeerMembers.JniInstanceMethods.InvokeVirtualVoidMethod(String encodedMember, IJavaPeerable self, JniArgumentValue* parameters)
  at Android.Content.ContextWrapper.StartActivity(Intent intent)
  at Microsoft.Maui.Authentication.WebAuthenticatorIntermediateActivity.OnResume()
  at Android.App.Activity.n_OnResume(IntPtr jnienv, IntPtr native__this)
  at Android.Runtime.JNINativeWrapper.Wrap_JniMarshal_PP_V(_JniMarshal_PP_V callback, IntPtr jnienv, IntPtr klazz)
  at java.lang.NullPointerException: Attempt to invoke virtual method 'boolean android.content.Intent.migrateExtraStreamToClipData(android.content.Context)' on a null object reference
  at android.app.Instrumentation.execStartActivity(Instrumentation.java:1832)
  at android.app.Activity.startActivityForResult(Activity.java:5471)
  at android.app.Activity.startActivityForResult(Activity.java:5429)
  at android.app.Activity.startActivity(Activity.java:5927)
  at android.app.Activity.startActivity(Activity.java:5894)
  at crc6468b6408a11370c2f.WebAuthenticatorIntermediateActivity.n_onResume(Native Method)
  at crc6468b6408a11370c2f.WebAuthenticatorIntermediateActivity.onResume(WebAuthenticatorIntermediateActivity.java:38)
  at android.app.Instrumentation.callActivityOnResume(Instrumentation.java:1564)
  at android.app.Activity.performResume(Activity.java:8437)
  at android.app.ActivityThread.performResumeActivity(ActivityThread.java:4763)
  at android.app.ActivityThread.handleResumeActivity(ActivityThread.java:4806)
  at android.app.servertransaction.ResumeActivityItem.execute(ResumeActivityItem.java:54)
  at android.app.servertransaction.ActivityTransactionItem.execute(ActivityTransactionItem.java:45)
  at android.app.servertransaction.TransactionExecutor.executeLifecycleState(TransactionExecutor.java:176)
  at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:97)
  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2307)
  at android.os.Handler.dispatchMessage(Handler.java:106)
  at android.os.Looper.loopOnce(Looper.java:201)
  at android.os.Looper.loop(Looper.java:288)
  at android.app.ActivityThread.main(ActivityThread.java:7872)
  at java.lang.reflect.Method.invoke(Native Method)
  at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:548)
  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:936)

It seems that there is another exception that accompanies this one on the same devices:

Java.Lang.NullPointerException: Attempt to invoke virtual method 'boolean android.content.Intent.migrateExtraStreamToClipData(android.content.Context)' on a null object reference
  at Java.Interop.JniEnvironment.InstanceMethods.CallNonvirtualVoidMethod(JniObjectReference instance, JniObjectReference type, JniMethodInfo method, JniArgumentValue* args)
  at Java.Interop.JniPeerMembers.JniInstanceMethods.InvokeVirtualVoidMethod(String encodedMember, IJavaPeerable self, JniArgumentValue* parameters)
  at Android.App.Activity.StartActivityForResult(Intent intent, Int32 requestCode)
  at Microsoft.Maui.ApplicationModel.IntermediateActivity.OnCreate(Bundle savedInstanceState)
  at Android.App.Activity.n_OnCreate_Landroid_os_Bundle_(IntPtr jnienv, IntPtr native__this, IntPtr native_savedInstanceState)
  at Android.Runtime.JNINativeWrapper.Wrap_JniMarshal_PPL_V(_JniMarshal_PPL_V callback, IntPtr jnienv, IntPtr klazz, IntPtr p0)
  at java.lang.NullPointerException: Attempt to invoke virtual method 'boolean android.content.Intent.migrateExtraStreamToClipData(android.content.Context)' on a null object reference
  at android.app.Instrumentation.execStartActivity(Instrumentation.java:1832)
  at android.app.Activity.startActivityForResult(Activity.java:5471)
  at android.app.Activity.startActivityForResult(Activity.java:5429)
  at crc64ba438d8f48cf7e75.IntermediateActivity.n_onCreate(Native Method)
  at crc64ba438d8f48cf7e75.IntermediateActivity.onCreate(IntermediateActivity.java:30)
  at android.app.Activity.performCreate(Activity.java:8305)
  at android.app.Activity.performCreate(Activity.java:8284)
  at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1417)
  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3626)
  at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3782)
  at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:101)
  at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:135)
  at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:95)
  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2307)
  at android.os.Handler.dispatchMessage(Handler.java:106)
  at android.os.Looper.loopOnce(Looper.java:201)
  at android.os.Looper.loop(Looper.java:288)
  at android.app.ActivityThread.main(ActivityThread.java:7872)
  at java.lang.reflect.Method.invoke(Native Method)
  at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:548)
  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:936)