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  1. Qt
  2. QTBUG-111960

NPE: Attempt to invoke virtual method setActivityDisplayRotation() on a null object reference

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Details

    • Bug
    • Resolution: Unresolved
    • P1: Critical
    • None
    • 5.15.12
    • Extras: Android
    • None
    • Android
    • 2024wk18FOQtforAndroid

    Description

      We recently upgraded from Qt 5.15.2 to 5.15.12 and are now seeing crashes like the following:

      Exception java.lang.NullPointerException: Attempt to invoke virtual method 'void org.qtproject.qt5.android.QtLayout.setActivityDisplayRotation(int)' on a null object reference
  at org.qtproject.qt5.android.QtActivityDelegate$4.onDisplayChanged (QtActivityDelegate.java:603)
  at android.hardware.display.DisplayManagerGlobal$DisplayListenerDelegate.handleMessage (DisplayManagerGlobal.java:736)
  at android.os.Handler.dispatchMessage (Handler.java:106)
  at android.os.Looper.loop (Looper.java:268)
  at android.app.ActivityThread.main (ActivityThread.java:8023)
  at java.lang.reflect.Method.invoke
  at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run (RuntimeInit.java:635)
  at com.android.internal.os.ZygoteInit.main (ZygoteInit.java:947)

      From the lifecycle events in Sentry we can see that this seems to happen when the app is either resumed from background or moved to background.

      Affected OS versions include Android 8–13.

      Affected devices include the following:

      • TECNO SPARK 7P
      • TECNO KG5k
      • POCO M3
      • Redmi Note 8 pro
      • realme 8
      • POCO X3 Pro
      • Pixel 7 Pro

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          relates to

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-80766 Android app installed from Google Play store crashes

          • P1: Critical - Urgent and Important, will STOP the release if matched with set FixVersion field. This includes regressions from the last version that are not edge cases; Data loss; Build issues; All but the most unlikely crashes/lockups/hanging; Serious usability issues and embarrassing bugs & Bugs critical to a deliverable. This is the highest possible priority for requirements.
          • Closed
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            People

              ahmedelkhazari Ahmed El Khazari
              fseiffert Frederik Seiffert
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              Dates

                Created:
                Updated:

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