TeamAmaze / TeamAmaze/AmazeFileManager

`ConcurrentModificationException` on `LoadFilesListTask#postListCustomPathProcess`

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From-Email Issue-Bug
Dominant language
Kotlin
Stars
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Forks
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Avg merge
3d 9h
Merged PRs (30d)
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Description

Issue explanation (write below this line)

deleted a file, then it crashed.

Exception

  • App Name: Amaze File Manager
  • Package: com.amaze.filemanager
  • Version: 3.8.5
  • User Action: UI Error
  • Request: Application crash
  • OS: Linux Android 10 - 29
  • Device: star2qltechn
  • Model: SM-G9650
  • Product: star2qltezh
Crash log

java.lang.RuntimeException: An error occurred while executing
doInBackground()
at android.os.AsyncTask$4.done(AsyncTask.java:399)
at java.util.concurrent.FutureTask.finishCompletion(FutureTask.java:383)
at java.util.concurrent.FutureTask.setException(FutureTask.java:252)
at java.util.concurrent.FutureTask.run(FutureTask.java:271)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1167)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
at java.lang.Thread.run(Thread.java:919)
Caused by: java.util.ConcurrentModificationException
at java.util.ArrayList.sort(ArrayList.java:1472)
at java.util.Collections.sort(Collections.java:206)
at
com.amaze.filemanager.asynchronous.asynctasks.LoadFilesListTask.postListCustomPathProcess(LoadFilesListTask.java:276)
at
com.amaze.filemanager.asynchronous.asynctasks.LoadFilesListTask.doInBackground(LoadFilesListTask.java:193)
at
com.amaze.filemanager.asynchronous.asynctasks.LoadFilesListTask.doInBackground(LoadFilesListTask.java:85)
at android.os.AsyncTask$3.call(AsyncTask.java:378)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
... 3 more


Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start at LoadFilesListTask.postListCustomPathProcess (line 276) and doInBackground (line 193), focusing on the sort that throws ConcurrentModificationException after a file is deleted. Reproduce the deletion during list processing and verify that the file-list operation completes without the crash.

Written by the indexing model from the issue text.

Assessment

Tech stack
android, java, kotlin
Domain
mobile
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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