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

Stack Overflow | Nithinjith | 3 months ago
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    Null Pointer Exception without package name Or class Name

    Stack Overflow | 3 months ago | Nithinjith
    java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String java.lang.Object.toString()' on a null object reference
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    Android App: Trying to write different values from an object that is in an array to their own columns in SQLite database

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    sqlite: Android App: Trying to write different values from an object that is in an array to their own columns in SQLite database

    blogspot.com | 1 year ago
    java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String java.lang.Object.toString()' on a null object reference
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    java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String java.lang.Object.toString()' on a null object reference
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    Из-за чего может появляться NullPointerException при setAdapter в разных версиях Android? — Toster.ru

    toster.ru | 1 year ago
    java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String java.lang.Object.toString()' on a null object reference

  1. spe 1 times, last 6 months ago
  2. Saravana Kumar Chinnaraj 1 times, last 7 months ago
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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:401)
    2. android.widget.ArrayAdapter.getView(ArrayAdapter.java:369)
    3. android.widget.AbsListView.obtainView(AbsListView.java:2937)
    4. android.widget.ListView.measureHeightOfChildren(ListView.java:1305)
    5. android.widget.ListView.onMeasure(ListView.java:1212)
    6. android.view.View.measure(View.java:20214)
    7. android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6333)
    8. android.widget.FrameLayout.onMeasure(FrameLayout.java:194)
    9. android.view.View.measure(View.java:20214)
    10. android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6333)
    11. android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1464)
    12. android.widget.LinearLayout.measureVertical(LinearLayout.java:747)
    13. android.widget.LinearLayout.onMeasure(LinearLayout.java:629)
    14. android.view.View.measure(View.java:20214)
    15. android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6333)
    16. android.widget.FrameLayout.onMeasure(FrameLayout.java:194)
    17. android.view.View.measure(View.java:20214)
    18. android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6333)
    19. android.widget.FrameLayout.onMeasure(FrameLayout.java:194)
    20. android.view.View.measure(View.java:20214)
    21. android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6333)
    22. android.widget.FrameLayout.onMeasure(FrameLayout.java:194)
    22 frames
  3. Android
    PhoneWindow$DecorView.onMeasure
    1. com.android.internal.policy.PhoneWindow$DecorView.onMeasure(PhoneWindow.java:3083)
    1 frame
  4. Android Platform
    ActivityThread.main
    1. android.view.View.measure(View.java:20214)
    2. android.view.ViewRootImpl.performMeasure(ViewRootImpl.java:2683)
    3. android.view.ViewRootImpl.measureHierarchy(ViewRootImpl.java:1611)
    4. android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1928)
    5. android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1524)
    6. android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:7520)
    7. android.view.Choreographer$CallbackRecord.run(Choreographer.java:911)
    8. android.view.Choreographer.doCallbacks(Choreographer.java:686)
    9. android.view.Choreographer.doFrame(Choreographer.java:622)
    10. android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:897)
    11. android.os.Handler.handleCallback(Handler.java:739)
    12. android.os.Handler.dispatchMessage(Handler.java:95)
    13. android.os.Looper.loop(Looper.java:148)
    14. android.app.ActivityThread.main(ActivityThread.java:7325)
    14 frames
  5. Java RT
    Method.invoke
    1. java.lang.reflect.Method.invoke(Method.java)
    1 frame
  6. Android
    ZygoteInit.main
    1. com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1230)
    2. com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1120)
    2 frames