Crashed once in Lenovo Android 7 once.

[dudhatparesh]

Fatal Exception: java.lang.RuntimeException: An error occurred while executing doInBackground()
at android.os.AsyncTask$3.done(AsyncTask.java:318)
at java.util.concurrent.FutureTask.finishCompletion(FutureTask.java:354)
at java.util.concurrent.FutureTask.setException(FutureTask.java:223)
at java.util.concurrent.FutureTask.run(FutureTask.java:242)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1133)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:607)
at java.lang.Thread.run(Thread.java:761)

Caused by java.lang.NullPointerException: Attempt to invoke interface method 'void android.database.Cursor.close()' on a null object reference
at org.shagi.filepicker.FilePickerUtilsKt.saveTempFileUri(FilePickerUtils.kt:89)
at org.shagi.filepicker.SaveFileAsyncTask.saveFile(SaveFileAsyncTask.kt:81)
at org.shagi.filepicker.SaveFileAsyncTask.saveToFile(SaveFileAsyncTask.kt:70)
at org.shagi.filepicker.SaveFileAsyncTask.doInBackground(SaveFileAsyncTask.kt:46)
at org.shagi.filepicker.SaveFileAsyncTask.doInBackground(SaveFileAsyncTask.kt:13)
at android.os.AsyncTask$2.call(AsyncTask.java:304)
at java.util.concurrent.FutureTask.run(FutureTask.java:237)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1133)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:607)
at java.lang.Thread.run(Thread.java:761)

[thegamer123]

add this to your onCreate , it will catch the exception

Thread.setDefaultUncaughtExceptionHandler { paramThread, paramThrowable ->
//Catch your exception
}