B4J Question Error Happened in Resumable Subs not Caught in Application_Error

[xulihang]

I am using Application_Error event to capture all errors. But it cannot capture errors happened in resumable subs. Is there a way to fix this?

Sub Process_Globals
    Private fx As JFX
    Private MainForm As Form
    Private xui As XUI
    Private Button1 As B4XView
End Sub

'Return true to allow the default exceptions handler to handle the uncaught exception.
Sub Application_Error (Error As Exception, StackTrace As String) As Boolean
    Log(Error)
    Log(StackTrace)
    Return False
End Sub

Sub AppStart (Form1 As Form, Args() As String)
    MainForm = Form1
    MainForm.RootPane.LoadLayout("Layout1")
    MainForm.Show
    wait for (test) complete (done As Object)
End Sub

Private Sub test As ResumableSub
    Sleep(0)
    Dim i As Int = "A"
    Return ""
End Sub

Sub Button1_Click
    xui.MsgboxAsync("Hello World!", "B4X")
End Sub

 

[Swissmade]

Private Sub test As ResumableSub Sleep(0) Dim i As Int = "A" Return "" End Sub

Why not using Try Catch End Try
Fetch all error in this sub.

 

[Chris2]

Are you testing this in Release mode?
Application_Error is only called in Release mode, it is not used in Debug

 

[xulihang]

Why not using Try Catch End Try
Fetch all error in this sub.

There are many subs. I need to add try catch for every sub.

 

[PaulMeuris]

The sleep(0) function seems to have an influence on the behavior.
If this function is before the line with the error then the application error subroutine is not executed.

Sub Process_Globals
    Private fx As JFX
    Private MainForm As Form
    Private xui As XUI
    Private Button1 As B4XView
End Sub
Sub AppStart (Form1 As Form, Args() As String)
    MainForm = Form1
    MainForm.RootPane.LoadLayout("Layout1")
    MainForm.Show
    wait for (test) complete (done As Object)
End Sub
Private Sub test As ResumableSub
    Dim i As Int = "A"               
    Sleep(0)
    Return ""
End Sub
Sub Application_Error (Error As Exception, StackTrace As String) As Boolean
    LogColor(Error,xui.Color_Blue)
    LogColor(StackTrace,xui.Color_Magenta)
    Return False
End Sub

 

[xulihang]

Are you testing this in Release mode?
Application_Error is only called in Release mode, it is not used in Debug

I am testing in release mode.

 

[Chris2]

If this function is before the line with the error then the application error subroutine is not executed.

Good spot!
My guess is that it has something to do with the test sub returning (because of the Sleep(0)) before the line that causes the error.

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