Android Question GetAllSafeDirsExternal("") crash

[mw71]

hi

i use this code Line to get the Path for internal and external SD Card.

Dim pfade() As String = Starter.rp.GetAllSafeDirsExternal("")

(Starter -> Starter Service
rp -> RunntimePermission, Public rp As RuntimePermissions)

Until now it works fine.

Now my Device (Motorola One... with Android 9) has a problem with the external SD Card (internal all o.k.) and the code line crash.
I do not understand why.

(java line 2544 points to the codeline above)

Spoiler: Error Log

main$ResumableSub_Activity_Createresume (java line: 2544)
java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String java.io.File.toString()' on a null object reference
at anywheresoftware.b4a.objects.RuntimePermissions.GetAllSafeDirsExternal(RuntimePermissions.java:121)
at de.soft.myapp.main$ResumableSub_Activity_Create.resume(main.java:2544)
at de.soft.myapp.main._activity_create(main.java:1349)
at java.lang.reflect.Method.invoke(Native Method)
at anywheresoftware.b4a.BA.raiseEvent2(BA.java:196)
at de.soft.myapp.main.afterFirstLayout(main.java:104)
at de.soft.myapp.main.access$000(main.java:17)
at de.soft.myapp.main$WaitForLayout.run(main.java:82)
at android.os.Handler.handleCallback(Handler.java:873)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:220)
at android.app.ActivityThread.main(ActivityThread.java:6939)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:870)
main$ResumableSub_Activity_Createresume (java line: 2544)
java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String java.io.File.toString()' on a null object reference
at anywheresoftware.b4a.objects.RuntimePermissions.GetAllSafeDirsExternal(RuntimePermissions.java:121)
at de.soft.myapp.main$ResumableSub_Activity_Create.resume(main.java:2544)
at de.soft.myapp.main._activity_create(main.java:1349)
at java.lang.reflect.Method.invoke(Native Method)
at anywheresoftware.b4a.BA.raiseEvent2(BA.java:196)
at de.soft.myapp.main.afterFirstLayout(main.java:104)
at de.soft.myapp.main.access$000(main.java:17)
at de.soft.myapp.main$WaitForLayout.run(main.java:82)
at android.os.Handler.handleCallback(Handler.java:873)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:220)
at android.app.ActivityThread.main(ActivityThread.java:6939)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:870)

 

[Erel]

Which version of B4A are you using?

 

[mw71]

Which version of B4A are you using?

9.5

 

[Erel]

That's a mistake. First step is to update to the latest version.

 

[mw71]

sri, i have forget to update B4A

Update now to latest Release (9.8), the same error.
(Beta not testet)

 

[JohnC]

What changed when you started to get this error?

Did you update the OS on your phone?

Did you replace the SD card in your phone?

 

[mw71]

hi

No Update.

No realy Change.
Now i see and test, with SD Card Inside, but unmount (press eject in the OS) i get the Error.
With mount RO (i think it's RO, i can see/open all, also the SQLite Database, but no write posibble) the Error don't come.

 

[Erel]

Please post the updated error message.

 

[mw71]

hi,

i think there is no change in in the Error before/after update B4A.
I have attach the unfilter Log.

Spoiler: Error Log

Failed to openat(/storage/413B-1E1A): Permission denied
Failed to ensure /storage/413B-1E1A/Android/data/de.mysoft.mylog/files: java.lang.IllegalStateException: Failed to prepare /storage/413B-1E1A/Android/data/de.mysoft.mylog/files/: android.os.ServiceSpecificException: (code -13)
main$ResumableSub_Activity_Createresume (java line: 2544)
java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String java.io.File.toString()' on a null object reference
at anywheresoftware.b4a.objects.RuntimePermissions.GetAllSafeDirsExternal(RuntimePermissions.java:121)
at de.mysoft.mylog.main$ResumableSub_Activity_Create.resume(main.java:2544)
at de.mysoft.mylog.main._activity_create(main.java:1349)
at java.lang.reflect.Method.invoke(Native Method)
at anywheresoftware.b4a.BA.raiseEvent2(BA.java:196)
at de.mysoft.mylog.main.afterFirstLayout(main.java:104)
at de.mysoft.mylog.main.access$000(main.java:17)
at de.mysoft.mylog.main$WaitForLayout.run(main.java:82)
at android.os.Handler.handleCallback(Handler.java:873)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:220)
at android.app.ActivityThread.main(ActivityThread.java:6939)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:870)
A resource failed to call close.
MM Stop accel
Compiler allocated 4MB to compile java.lang.String de.mysoft.mylog.main._set_loc()
Key android.intent.extra.TEXT expected ArrayList<CharSequence> but value was a java.lang.String. The default value <null> was returned.
Attempt to cast generated internal exception:
java.lang.ClassCastException: java.lang.String cannot be cast to java.util.ArrayList
at android.os.BaseBundle.getCharSequenceArrayList(BaseBundle.java:1302)
at android.os.Bundle.getCharSequenceArrayList(Bundle.java:1076)
at android.content.Intent.getCharSequenceArrayListExtra(Intent.java:7570)
at android.content.Intent.migrateExtraStreamToClipData(Intent.java:10415)
at android.app.Instrumentation.execStartActivity(Instrumentation.java:1735)
at android.app.ContextImpl.startActivity(ContextImpl.java:920)
at android.app.ContextImpl.startActivity(ContextImpl.java:891)
at android.content.ContextWrapper.startActivity(ContextWrapper.java:379)
at anywheresoftware.b4a.keywords.Common.StartActivity(Common.java:863)
at de.mysoft.mylog.starter._application_error(starter.java:257)
at java.lang.reflect.Method.invoke(Native Method)
at anywheresoftware.b4a.BA.raiseEvent2(BA.java:196)
at anywheresoftware.b4a.keywords.Common.CallSub4(Common.java:1083)
at anywheresoftware.b4a.keywords.Common.CallSubNew3(Common.java:1046)
at anywheresoftware.b4a.objects.ServiceHelper$StarterHelper.handleUncaughtException(ServiceHelper.java:267)
at java.lang.reflect.Method.invoke(Native Method)
at anywheresoftware.b4a.BA.raiseEvent2(BA.java:222)
at de.mysoft.mylog.main.afterFirstLayout(main.java:104)
at de.mysoft.mylog.main.access$000(main.java:17)
at de.mysoft.mylog.main$WaitForLayout.run(main.java:82)
at android.os.Handler.handleCallback(Handler.java:873)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:220)
at android.app.ActivityThread.main(ActivityThread.java:6939)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:870)
START u0 {act=android.intent.action.SEND_MULTIPLE typ=text/plain flg=0x10000000 cmp=android/com.android.internal.app.ResolverActivity (has extras)} from uid 10257
main$ResumableSub_Activity_Createresume (java line: 2544)
java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String java.io.File.toString()' on a null object reference
at anywheresoftware.b4a.objects.RuntimePermissions.GetAllSafeDirsExternal(RuntimePermissions.java:121)
at de.mysoft.mylog.main$ResumableSub_Activity_Create.resume(main.java:2544)
at de.mysoft.mylog.main._activity_create(main.java:1349)
at java.lang.reflect.Method.invoke(Native Method)
at anywheresoftware.b4a.BA.raiseEvent2(BA.java:196)
at de.mysoft.mylog.main.afterFirstLayout(main.java:104)
at de.mysoft.mylog.main.access$000(main.java:17)
at de.mysoft.mylog.main$WaitForLayout.run(main.java:82)
at android.os.Handler.handleCallback(Handler.java:873)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:220)
at android.app.ActivityThread.main(ActivityThread.java:6939)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:870)
--------- beginning of crash
FATAL EXCEPTION: main
Process: de.mysoft.mylog, PID: 10976
java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String java.io.File.toString()' on a null object reference
at anywheresoftware.b4a.objects.RuntimePermissions.GetAllSafeDirsExternal(RuntimePermissions.java:121)
at de.mysoft.mylog.main$ResumableSub_Activity_Create.resume(main.java:2544)
at de.mysoft.mylog.main._activity_create(main.java:1349)
at java.lang.reflect.Method.invoke(Native Method)
at anywheresoftware.b4a.BA.raiseEvent2(BA.java:196)
at de.mysoft.mylog.main.afterFirstLayout(main.java:104)
at de.mysoft.mylog.main.access$000(main.java:17)
at de.mysoft.mylog.main$WaitForLayout.run(main.java:82)
at android.os.Handler.handleCallback(Handler.java:873)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:220)
at android.app.ActivityThread.main(ActivityThread.java:6939)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:870)

 

[Erel]

Copy the attached library to the internal libraries folder. It should show v1.11.

Do you get the same error? Post the stack trace again if so.

 

[mw71]

with RuntimePermissions V1.11

Spoiler: Error Log

Failed to openat(/storage/413B-1E1A): Permission denied
Failed to ensure /storage/413B-1E1A/Android/data/de.mysoft.mylog/files: java.lang.IllegalStateException: Failed to prepare /storage/413B-1E1A/Android/data/de.mysoft.mylog/files/: android.os.ServiceSpecificException: (code -13)
main$ResumableSub_Activity_Createresume (java line: 2544)
java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String java.io.File.toString()' on a null object reference
at anywheresoftware.b4a.objects.RuntimePermissions.GetAllSafeDirsExternal(RuntimePermissions.java:138)
at de.mysoft.mylog.main$ResumableSub_Activity_Create.resume(main.java:2544)
at de.mysoft.mylog.main._activity_create(main.java:1349)
at java.lang.reflect.Method.invoke(Native Method)
at anywheresoftware.b4a.BA.raiseEvent2(BA.java:196)
at de.mysoft.mylog.main.afterFirstLayout(main.java:104)
at de.mysoft.mylog.main.access$000(main.java:17)
at de.mysoft.mylog.main$WaitForLayout.run(main.java:82)
at android.os.Handler.handleCallback(Handler.java:873)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:220)
at android.app.ActivityThread.main(ActivityThread.java:6939)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:870)
Slow dispatch took 1427ms main h=android.app.ActivityThread$H c=android.app.-$$Lambda$LoadedApk$ReceiverDispatcher$Args$_BumDX2UKsnxLVrE6UJsJZkotuA@565be51 m=0
DefaultDialerCache: Refreshing default dialer for user 0: now com.google.android.dialer: DDC.oR@AVs
getFullBackupIntervalMilliseconds(...) returns 86400000
Drained
Indexing com.google.android.gms-apps from com.google.android.gms [CONTEXT service_id=21 ]
Indexing done com.google.android.gms-apps [CONTEXT service_id=21 ]
resources.arsc in APK '/data/app/com.instagram.android-xxQEgV7WbfB0bioYyc1LDQ==/base.apk' is compressed.
Key android.intent.extra.TEXT expected ArrayList<CharSequence> but value was a java.lang.String. The default value <null> was returned.
Attempt to cast generated internal exception:
java.lang.ClassCastException: java.lang.String cannot be cast to java.util.ArrayList
at android.os.BaseBundle.getCharSequenceArrayList(BaseBundle.java:1302)
at android.os.Bundle.getCharSequenceArrayList(Bundle.java:1076)
at android.content.Intent.getCharSequenceArrayListExtra(Intent.java:7570)
at android.content.Intent.migrateExtraStreamToClipData(Intent.java:10415)
at android.app.Instrumentation.execStartActivity(Instrumentation.java:1735)
at android.app.ContextImpl.startActivity(ContextImpl.java:920)
at android.app.ContextImpl.startActivity(ContextImpl.java:891)
at android.content.ContextWrapper.startActivity(ContextWrapper.java:379)
at anywheresoftware.b4a.keywords.Common.StartActivity(Common.java:863)
at de.mysoft.mylog.starter._application_error(starter.java:257)
at java.lang.reflect.Method.invoke(Native Method)
at anywheresoftware.b4a.BA.raiseEvent2(BA.java:196)
at anywheresoftware.b4a.keywords.Common.CallSub4(Common.java:1083)
at anywheresoftware.b4a.keywords.Common.CallSubNew3(Common.java:1046)
at anywheresoftware.b4a.objects.ServiceHelper$StarterHelper.handleUncaughtException(ServiceHelper.java:267)
at java.lang.reflect.Method.invoke(Native Method)
at anywheresoftware.b4a.BA.raiseEvent2(BA.java:222)
at de.mysoft.mylog.main.afterFirstLayout(main.java:104)
at de.mysoft.mylog.main.access$000(main.java:17)
at de.mysoft.mylog.main$WaitForLayout.run(main.java:82)
at android.os.Handler.handleCallback(Handler.java:873)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:220)
at android.app.ActivityThread.main(ActivityThread.java:6939)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:870)
START u0 {act=android.intent.action.SEND_MULTIPLE typ=text/plain flg=0x10000000 cmp=android/com.android.internal.app.ResolverActivity (has extras)} from uid 10257
main$ResumableSub_Activity_Createresume (java line: 2544)
java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String java.io.File.toString()' on a null object reference
at anywheresoftware.b4a.objects.RuntimePermissions.GetAllSafeDirsExternal(RuntimePermissions.java:138)
at de.mysoft.mylog.main$ResumableSub_Activity_Create.resume(main.java:2544)
at de.mysoft.mylog.main._activity_create(main.java:1349)
at java.lang.reflect.Method.invoke(Native Method)
at anywheresoftware.b4a.BA.raiseEvent2(BA.java:196)
at de.mysoft.mylog.main.afterFirstLayout(main.java:104)
at de.mysoft.mylog.main.access$000(main.java:17)
at de.mysoft.mylog.main$WaitForLayout.run(main.java:82)
at android.os.Handler.handleCallback(Handler.java:873)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:220)
at android.app.ActivityThread.main(ActivityThread.java:6939)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:870)
--------- beginning of crash
FATAL EXCEPTION: main
Process: de.mysoft.mylog, PID: 18859
java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String java.io.File.toString()' on a null object reference
at anywheresoftware.b4a.objects.RuntimePermissions.GetAllSafeDirsExternal(RuntimePermissions.java:138)
at de.mysoft.mylog.main$ResumableSub_Activity_Create.resume(main.java:2544)
at de.mysoft.mylog.main._activity_create(main.java:1349)
at java.lang.reflect.Method.invoke(Native Method)
at anywheresoftware.b4a.BA.raiseEvent2(BA.java:196)
at de.mysoft.mylog.main.afterFirstLayout(main.java:104)
at de.mysoft.mylog.main.access$000(main.java:17)
at de.mysoft.mylog.main$WaitForLayout.run(main.java:82)
at android.os.Handler.handleCallback(Handler.java:873)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:220)
at android.app.ActivityThread.main(ActivityThread.java:6939)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:870)

 

[Erel]

Now the numbers make sense. I've added a check for this in B4A v9.90 which will soon be released. It will return an empty string in one of the elements instead of crashing.