java.lang.RuntimeException: Unable to start activity ComponentInfo{sample.com.dataccess/sample.com.dataccess.MainActivity}: java.lang.NullPointerException: storage == null

Stack Overflow | madhu | 2 months ago
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Root Cause Analysis

  1. java.lang.NullPointerException

    storage == null

    at java.util.Arrays$ArrayList.<init>()
  2. Java RT
    Arrays.asList
    1. java.util.Arrays$ArrayList.<init>(Arrays.java:38)
    2. java.util.Arrays.asList(Arrays.java:155)
    2 frames
  3. Android Platform
    ArrayAdapter.<init>
    1. android.widget.ArrayAdapter.<init>(ArrayAdapter.java:128)
    1 frame
  4. sample.com.dataccess
    MainActivity.onCreate
    1. sample.com.dataccess.MainActivity.onCreate(MainActivity.java:47)
    1 frame
  5. Android Platform
    ActivityThread.main
    1. android.app.Activity.performCreate(Activity.java:5990)
    2. android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1106)
    3. android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2278)
    4. android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2387)
    5. android.app.ActivityThread.access$800(ActivityThread.java:151)
    6. android.app.ActivityThread$H.handleMessage(ActivityThread.java:1303)
    7. android.os.Handler.dispatchMessage(Handler.java:102)
    8. android.os.Looper.loop(Looper.java:135)
    9. android.app.ActivityThread.main(ActivityThread.java:5254)
    9 frames
  6. Java RT
    Method.invoke
    1. java.lang.reflect.Method.invoke(Native Method)
    2. java.lang.reflect.Method.invoke(Method.java:372)
    2 frames
  7. Android
    ZygoteInit.main
    1. com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:903)
    2. com.android.internal.os.ZygoteInit.main(ZygoteInit.java:698)
    2 frames