java.lang.RuntimeException: An error occured while executing doInBackground()

itcuties.com | 2 weeks ago
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    Android AsyncTask RSS Reader - Programmer's lounge

    itcuties.com | 2 weeks ago
    java.lang.RuntimeException: An error occured while executing doInBackground()
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    Switching fragments while asnycTask is running causes error

    Stack Overflow | 2 years ago | ljpv14
    java.lang.RuntimeException: An error occured while executing doInBackground()
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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.e
    1. android.util.Log.println_native(Native Method)
    2. android.util.Log.e(Log.java:297)
    2 frames
  3. com.example.newsrss
    MainActivity$GetRSSDataTask.doInBackground
    1. com.example.newsrss.MainActivity$GetRSSDataTask.doInBackground(MainActivity.java:66)
    2. com.example.newsrss.MainActivity$GetRSSDataTask.doInBackground(MainActivity.java:1)
    2 frames
  4. Android Platform
    AsyncTask$2.call
    1. android.os.AsyncTask$2.call(AsyncTask.java:287)
    1 frame
  5. Java RT
    FutureTask.run
    1. java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:305)
    2. java.util.concurrent.FutureTask.run(FutureTask.java:137)
    2 frames
  6. Android Platform
    AsyncTask$SerialExecutor$1.run
    1. android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:230)
    1 frame
  7. Java RT
    Thread.run
    1. java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1076)
    2. java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:569)
    3. java.lang.Thread.run(Thread.java:856)
    3 frames