NPE on `Operations#mkdir`

Issue explanation (write below this line)

Exception

• App Name: Amaze File Manager
• Package: com.amaze.filemanager
• Version: 3.8.2
• User Action: UI Error
• Request: Application crash
• OS: Linux Android 9 - 28
• Device: HWANE
• Model: ANE-LX2J
• Product: ANE-LX2J
  *Crash log *

java.lang.RuntimeException: An error occurred while executing
doInBackground()
at android.os.AsyncTask$3.done(AsyncTask.java:355)
at java.util.concurrent.FutureTask.finishCompletion(FutureTask.java:383)
at java.util.concurrent.FutureTask.setException(FutureTask.java:252)
at java.util.concurrent.FutureTask.run(FutureTask.java:271)
at
java.util.concurrent.ThreadPoolExecutor.processTask(ThreadPoolExecutor.java:1187)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
at java.lang.Thread.run(Thread.java:784)
Caused by: java.lang.NullPointerException
at java.io.File.(File.java:283)
at
com.amaze.filemanager.filesystem.Operations$1.doInBackground(Operations.java:232)
at
com.amaze.filemanager.filesystem.Operations$1.doInBackground(Operations.java:121)
at android.os.AsyncTask$2.call(AsyncTask.java:334)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
... 4 more

Start in Operations#mkdir at Operations.java:232, with the surrounding call path at Operations.java:121, and inspect the File construction shown in the crash log. Reproduce the Android UI flow that invokes mkdir and confirm that the operation completes without the reported NullPointerException.