Qt Android activity creation problem on Java update

SevenM

Hi All,
Apparently I am trying to upgrade development environment of my existing Qt project.
Original:
Qt 5.12.9
JDK 8
Gradle 4.6

Upgraded to:
Same Qt version
JDK 11
Gradle 7.4.0

To achieve this, I updated some deprecated Manifest settings and moved them to gradle.
I am able to compile and run the application however I see a runtime error and UI goes blank. The error in logcat is as follows:

E/Qt: Can't create main activity
    java.lang.Exception: 
        at org.qtproject.qt5.android.bindings.QtLoader.startApp(QtLoader.java:607)
        at org.qtproject.qt5.android.bindings.QtActivityLoader.onCreate(QtActivityLoader.java:166)
        at org.qtproject.qt5.android.bindings.QtActivity.onCreateHook(QtActivity.java:266)
        at org.qtproject.qt5.android.bindings.QtActivity.onCreate(QtActivity.java:273)
        at org.corob.qt.CorobActivity.onCreate(CorobActivity.java:250)
        at android.app.Activity.performCreate(Activity.java:8591)
        at android.app.Activity.performCreate(Activity.java:8570)
        at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1384)
        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:4150)
        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:4325)
        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$H.handleMessage(ActivityThread.java:2574)
        at android.os.Handler.dispatchMessage(Handler.java:106)
        at android.os.Looper.loopOnce(Looper.java:226)
        at android.os.Looper.loop(Looper.java:313)
        at android.app.ActivityThread.main(ActivityThread.java:8757)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:571)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1067)
code_text

To be precise, it occurs on the following line in myactivity.java:

super.onCreate(savedInstanceState);

The only thing I did was upgrading environment. I am not sure if any new addition is expected with this upgrade?