java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String java.lang.Object.toString()' on a null object reference

Stack Overflow | varunkr | 2 months ago
  1. 0

    Getting Attempt to invoke virtual method 'java.lang.String java.lang.Object.toString()' on a null object reference with no mention of any class

    Stack Overflow | 2 months ago | varunkr
    java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String java.lang.Object.toString()' on a null object reference
  2. 0

    AlertDialog singleChoiceItem NullPointerException

    Stack Overflow | 7 months ago | rup35h
    java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String java.lang.Object.toString()' on a null object reference
  3. 0

    (Android) getting error but not showing where in my code

    Stack Overflow | 7 months ago | Zvone Peran
    java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String java.lang.Object.toString()' on a null object reference
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Root Cause Analysis

  1. java.lang.NullPointerException

    Attempt to invoke virtual method 'java.lang.String java.lang.Object.toString()' on a null object reference

    at android.widget.ArrayAdapter.createViewFromResource()
  2. Android Platform
    FrameLayout.onMeasure
    1. android.widget.ArrayAdapter.createViewFromResource(ArrayAdapter.java:394)
    2. android.widget.ArrayAdapter.getView(ArrayAdapter.java:362)
    3. android.widget.Spinner.measureContentWidth(Spinner.java:778)
    4. android.widget.Spinner.onMeasure(Spinner.java:529)
    5. android.view.View.measure(View.java:17496)
    6. android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5466)
    7. android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1438)
    8. android.widget.LinearLayout.measureVertical(LinearLayout.java:724)
    9. android.widget.LinearLayout.onMeasure(LinearLayout.java:615)
    10. android.view.View.measure(View.java:17496)
    11. android.widget.ScrollView.measureChildWithMargins(ScrollView.java:1293)
    12. android.widget.FrameLayout.onMeasure(FrameLayout.java:430)
    13. android.widget.ScrollView.onMeasure(ScrollView.java:350)
    14. android.view.View.measure(View.java:17496)
    15. android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5466)
    16. android.widget.FrameLayout.onMeasure(FrameLayout.java:430)
    17. android.view.View.measure(View.java:17496)
    18. android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5466)
    19. android.widget.FrameLayout.onMeasure(FrameLayout.java:430)
    20. android.view.View.measure(View.java:17496)
    21. android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5466)
    22. android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1438)
    23. android.widget.LinearLayout.measureVertical(LinearLayout.java:724)
    24. android.widget.LinearLayout.onMeasure(LinearLayout.java:615)
    25. android.view.View.measure(View.java:17496)
    26. android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5466)
    27. android.widget.FrameLayout.onMeasure(FrameLayout.java:430)
    28. android.view.View.measure(View.java:17496)
    29. android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5466)
    30. android.widget.FrameLayout.onMeasure(FrameLayout.java:430)
    31. android.view.View.measure(View.java:17496)
    32. android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5466)
    33. android.widget.FrameLayout.onMeasure(FrameLayout.java:430)
    33 frames
  3. Android
    PhoneWindow$DecorView.onMeasure
    1. com.android.internal.policy.impl.PhoneWindow$DecorView.onMeasure(PhoneWindow.java:2636)
    1 frame
  4. Android Platform
    ActivityThread.main
    1. android.view.View.measure(View.java:17496)
    2. android.view.ViewRootImpl.performMeasure(ViewRootImpl.java:2031)
    3. android.view.ViewRootImpl.measureHierarchy(ViewRootImpl.java:1168)
    4. android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1400)
    5. android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1078)
    6. android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:5885)
    7. android.view.Choreographer$CallbackRecord.run(Choreographer.java:767)
    8. android.view.Choreographer.doCallbacks(Choreographer.java:580)
    9. android.view.Choreographer.doFrame(Choreographer.java:550)
    10. android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:753)
    11. android.os.Handler.handleCallback(Handler.java:739)
    12. android.os.Handler.dispatchMessage(Handler.java:95)
    13. android.os.Looper.loop(Looper.java:135)
    14. android.app.ActivityThread.main(ActivityThread.java:5376)
    14 frames
  5. Java RT
    Method.invoke
    1. java.lang.reflect.Method.invoke(Native Method)
    2. java.lang.reflect.Method.invoke(Method.java:372)
    2 frames
  6. Android
    ZygoteInit.main
    1. com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:908)
    2. com.android.internal.os.ZygoteInit.main(ZygoteInit.java:703)
    2 frames