TeamAmaze / TeamAmaze/AmazeFileManager
NPE on onProgressUpdate: Null MainFragment
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Issue-Bug
- Dominant language
- Kotlin
- Stars
- 6.4k
- Forks
- 1.7k
- Avg merge
- 3d 9h
- Merged PRs (30d)
- 1
Description
Issue explanation (write below this line)
Doing a search in a subfolder. First some results were coming, later it crashed.
Exception
- User Action: UI Error
- Request: Application crash
- Version: 3.5.3
- OS: Linux Android 9 - 28
- Device: dreamlte
- Model: SM-G950F
- Product: dreamltexx
Crash log
java.lang.NullPointerException: Attempt to invoke virtual method 'void com.amaze.filemanager.ui.fragments.MainFragment.addSearchResult(com.amaze.filemanager.filesystem.HybridFileParcelable, java.lang.String)' on a null object reference
at com.amaze.filemanager.ui.activities.MainActivity.onProgressUpdate(MainActivity.java:1861)
at com.amaze.filemanager.asynchronous.asynctasks.SearchAsyncTask.onProgressUpdate(SearchAsyncTask.java:106)
at com.amaze.filemanager.asynchronous.asynctasks.SearchAsyncTask.onProgressUpdate(SearchAsyncTask.java:35)
at android.os.AsyncTask$InternalHandler.handleMessage(AsyncTask.java:715)
at android.os.Handler.dispatchMessage(Handler.java:106)
at android.os.Looper.loop(Looper.java:214)
at android.app.ActivityThread.main(ActivityThread.java:7050)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:494)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:965)
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Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start with MainActivity.java at onProgressUpdate line 1861 and trace how SearchAsyncTask.java reports results during a subfolder search. Reproduce the search scenario on the reported Android version if possible, then verify that results arriving during fragment changes no longer cause the reported NullPointerException.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- android, java
- Domain
- mobile
- Issue type
- Bug
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 38/100