java.lang.NullPointerException: println needs a message

Stack Overflow | J. Doe | 5 months ago
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    After calling startActivityForResult() subsequent code still runs

    Stack Overflow | 5 months ago | J. Doe
    java.lang.NullPointerException: println needs a message
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    Error in the run service

    Stack Overflow | 4 years ago | Alexey Bystrov
    java.lang.NullPointerException: println needs a message
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    ACRA Dialog is not shown (ACRA 4.5.0-RC)

    GitHub | 4 years ago | kaushikprajapati
    java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.acraapp/com.example.acraapp.MainActivity}: java.lang.NullPointerException: println needs a message
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  5. 0

    ACRA Dialog is not shown (ACRA 4.5.0-RC)

    GitHub | 4 years ago | kaushikprajapati
    java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.acraapp/com.example.acraapp.MainActivity}: java.lang.NullPointerException: println needs a message

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Root Cause Analysis

  1. java.lang.NullPointerException

    println needs a message

    at android.util.Log.println_native()
  2. Android Platform
    Log.d
    1. android.util.Log.println_native(Native Method)
    2. android.util.Log.d(Log.java:154)
    2 frames
  3. com.example.android
    MainActivity$1.onClick
    1. com.example.android.prototypeapp.MainActivity$1$override.onClick(MainActivity.java:41)
    2. com.example.android.prototypeapp.MainActivity$1$override.access$dispatch(MainActivity.java)
    3. com.example.android.prototypeapp.MainActivity$1.onClick(MainActivity.java:0)
    3 frames
  4. Android Platform
    ActivityThread.main
    1. android.view.View.performClick(View.java:5264)
    2. android.view.View$PerformClick.run(View.java:21297)
    3. android.os.Handler.handleCallback(Handler.java:743)
    4. android.os.Handler.dispatchMessage(Handler.java:95)
    5. android.os.Looper.loop(Looper.java:150)
    6. android.app.ActivityThread.main(ActivityThread.java:5546)
    6 frames
  5. Java RT
    Method.invoke
    1. java.lang.reflect.Method.invoke(Native Method)
    1 frame
  6. Android
    ZygoteInit.main
    1. com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:794)
    2. com.android.internal.os.ZygoteInit.main(ZygoteInit.java:684)
    2 frames