Android Question HttpJob Intermittent Crashes

Discussion in 'Android Questions' started by DawningTruth, Jul 2, 2019.

  1. DawningTruth

    DawningTruth Active Member Licensed User

    The following code works, but intermittently crashes. It is pretty much exactly what is described in the examples. So I am stumped.

    Code:
    Sub UrlFetch(getUrl As String, param() As StringAs ResumableSub
        
        
    Log("==============================================")
        
    Log(">> UrlFetch")
        
    Log("==============================================")
        
        
    Dim job As HttpJob
        
    Dim urlContent As String
        
        job.Initialize(
    "", Me)

        job.Download2(getUrl,param)
        
    Log("FINISHED: UrlFetch -> Start Download Job"'Checking if request is executed
        Wait For (job) JobDone (job As HttpJob)
        
    Log("FINISHED: UrlFetch -> End Download Job"'Checking if response is executed
        
        
    If job.Success Then
            
    Log(job.GetString)
            urlContent = job.GetString
        
    Else
            
    Log("Error: " & job.ErrorMessage)
        
    End If
        job.Release
        
        
    'CallSubDelayed(Me, "UrlFetch_Complete")
        
        
    Log("FINISHED: UrlFetch"'Check if sub finished
        Return urlContent
        
    End Sub
    Here are the Logs:
    [​IMG]

    Any assistance is greatly appreciated.
     
  2. Erel

    Erel Administrator Staff Member Licensed User

    1. Please post the full error message as text.
    2. And also tell us where exactly it fails.
     
    DawningTruth likes this.
  3. DawningTruth

    DawningTruth Active Member Licensed User

    Thx Erel, as requested:

    1. Full Error Message as Text (in red)

    ==============================================
    >> UrlFetch
    ==============================================
    FINISHED: UrlFetch -> Start Download Job
    ==============================================
    >> UrlFetch
    ==============================================
    FINISHED: UrlFetch -> Start Download Job
    Error occurred on line: 2036 (MyActivity)
    java.lang.ClassCastException: java.lang.Object cannot be cast to b4a.example.main$_event_item_flag
    at b4a.example.MyActivity$ResumableSub_MyWebview_PageFinished.resume(MyActivity.java:5025)
    at b4a.example.MyActivity._MyWebview_pagefinished(MyActivity.java:4994)
    at java.lang.reflect.Method.invoke(Native Method)
    at anywheresoftware.b4a.shell.Shell.runMethod(Shell.java:732)
    at anywheresoftware.b4a.shell.Shell.raiseEventImpl(Shell.java:348)
    at anywheresoftware.b4a.shell.Shell.raiseEvent(Shell.java:255)
    at java.lang.reflect.Method.invoke(Native Method)
    at anywheresoftware.b4a.ShellBA.raiseEvent2(ShellBA.java:144)
    at anywheresoftware.b4a.BA.raiseEvent2(BA.java:180)
    at anywheresoftware.b4a.BA.raiseEvent(BA.java:176)
    at anywheresoftware.b4a.objects.WebViewWrapper$1.onPageFinished(WebViewWrapper.java:60)
    at uU.d(PG:307)
    at aIV.handleMessage(PG:73)
    at android.os.Handler.dispatchMessage(Handler.java:106)
    at android.os.Looper.loop(Looper.java:214)
    at android.app.ActivityThread.main(ActivityThread.java:7045)
    at java.lang.reflect.Method.invoke(Native Method)
    at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:964)

    2. Where it fails...


    Based on the logs above I presume it fails at the:

    Wait For (job) JobDone (job As HttpJob)

    As per the comment below:

    Code:
    job.Download2(getUrl,param)
    Log("FINISHED: UrlFetch -> Start Download Job"'Checking if request is executed[/COLOR][/COLOR]
    Wait For (job) JobDone (job As HttpJob'<==== FAILS HERE - Does not go to the next step
    Log("FINISHED: UrlFetch -> End Download Job"'Checking if response is executed
     
  4. Erel

    Erel Administrator Staff Member Licensed User

    It fails in MyWebView_PageFinished sub.
     
    DawningTruth likes this.
  5. DawningTruth

    DawningTruth Active Member Licensed User

    Thx Erel :).

    I will investigate there.
     
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