java.lang.RuntimeException: Unable to start activity ComponentInfo{com.mycollege.mait/com.mycollege.mait.Preferences}: java.lang.NullPointerException: storage == null

Stack Overflow | Anshul Garg | 3 months ago
  1. 0

    how to solve java.lang.NullPointerException: storage == null issue in android?

    Stack Overflow | 3 months ago | Anshul Garg
    java.lang.RuntimeException: Unable to start activity ComponentInfo{com.mycollege.mait/com.mycollege.mait.Preferences}: java.lang.NullPointerException: storage == null
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    Stack Overflow | 2 years ago
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    Android - NullPointerException & RuntimeException

    Stack Overflow | 2 years ago
    java.lang.NullPointerException: storage == null
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    Android - Caused by: java.lang.NullPointerException: storage == null

    Stack Overflow | 1 year ago | NewBie
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    Android java.lang.NullPointerException: storage == null on customAdapter

    Stack Overflow | 1 year ago | user3636640
    java.lang.RuntimeException: Unable to start activity ComponentInfo{com.tkk3468.androidapp/com.tkk3468.androidapp.MainActivity}: java.lang.NullPointerException: storage == null

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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. com.mycollege.mait
    Preferences.onCreate
    1. com.mycollege.mait.Preferences.onCreate(Preferences.java:272)
    1 frame
  5. Android Platform
    ActivityThread.performLaunchActivity
    1. android.app.Activity.performCreate(Activity.java:6010)
    2. android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1129)
    3. android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2292)
    3 frames