Crash in EmailLinkCatcherActivity on OnePlus devices running Android 11 (NullPointerException in InvisibleActivityBase

[zjamshidi]

We are encountering consistent crashes on OnePlus devices running Android 11 when using FirebaseUI Auth, affecting multiple FirebaseUI activities during onCreate().

This is not limited to a single auth flow. We see the same NullPointerException occurring in different FirebaseUI base classes, which suggests a shared root cause.

Affected Activities

• EmailLinkCatcherActivity
• AuthMethodPickerActivity

Crash logs

1. Email link flow

Fatal Exception: java.lang.RuntimeException: Unable to start activity ComponentInfo{com.storyshots.android/com.firebase.ui.auth.ui.email.EmailLinkCatcherActivity}: java.lang.NullPointerException: Attempt to read from field 'int ta.c.d' on a null object reference
       at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3433)
       at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3607)
       at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:85)
       at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:135)
       at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:95)
       at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2068)
       at android.os.Handler.dispatchMessage(Handler.java:106)
       at android.os.Looper.loop(Looper.java:223)
       at android.app.ActivityThread.main(ActivityThread.java:7680)
       at java.lang.reflect.Method.invokeNative(Method.java)
       at java.lang.reflect.Method.invoke(Method.java:423)
       at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:592)
       at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:947)
        
Caused by java.lang.NullPointerException: Attempt to read from field 'int ta.c.d' on a null object reference
       at com.firebase.ui.auth.ui.InvisibleActivityBase.onCreate(InvisibleActivityBase.java:39)
       at com.firebase.ui.auth.ui.email.EmailLinkCatcherActivity.onCreate(EmailLinkCatcherActivity.java)
       at android.app.Activity.performCreate(Activity.java:7994)
       at android.app.Activity.performCreate(Activity.java:7978)
       at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1548)
       at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3406)
       at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3607)
       at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:85)
       at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:135)
       at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:95)
       at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2068)
       at android.os.Handler.dispatchMessage(Handler.java:106)
       at android.os.Looper.loop(Looper.java:223)
       at android.app.ActivityThread.main(ActivityThread.java:7680)
       at java.lang.reflect.Method.invokeNative(Method.java)
       at java.lang.reflect.Method.invoke(Method.java:423)
       at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:592)
       at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:947)

2. Auth method picker

Fatal Exception: java.lang.RuntimeException: Unable to start activity ComponentInfo{com.storyshots.android/com.firebase.ui.auth.ui.idp.AuthMethodPickerActivity}: java.lang.NullPointerException: Attempt to read from field 'int ta.c.d' on a null object reference
       at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3433)
       at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3607)
       at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:85)
       at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:135)
       at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:95)
       at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2068)
       at android.os.Handler.dispatchMessage(Handler.java:106)
       at android.os.Looper.loop(Looper.java:223)
       at android.app.ActivityThread.main(ActivityThread.java:7680)
       at java.lang.reflect.Method.invokeNative(Method.java)
       at java.lang.reflect.Method.invoke(Method.java:423)
       at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:592)
       at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:947)
        
Caused by java.lang.NullPointerException: Attempt to read from field 'int ta.c.d' on a null object reference
       at com.firebase.ui.auth.ui.AppCompatBase.onCreate(AppCompatBase.java:44)
       at com.firebase.ui.auth.ui.idp.AuthMethodPickerActivity.onCreate(AuthMethodPickerActivity.kt)
       at android.app.Activity.performCreate(Activity.java:7994)
       at android.app.Activity.performCreate(Activity.java:7978)
       at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1548)
       at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3406)
       at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3607)
       at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:85)
       at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:135)
       at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:95)
       at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2068)
       at android.os.Handler.dispatchMessage(Handler.java:106)
       at android.os.Looper.loop(Looper.java:223)
       at android.app.ActivityThread.main(ActivityThread.java:7680)
       at java.lang.reflect.Method.invokeNative(Method.java)
       at java.lang.reflect.Method.invoke(Method.java:423)
       at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:592)
       at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:947)

Updating Firebase auth and FirebaseUI SDKs didn't help.