B4J Question HttpJob in Libraries

Blueforcer

Well-Known Member
Licensed User
Longtime User
I want to create a library wich needs to download a file.
Lib and MainApp uses jOkHttpUtils2

i test it very simple:

Lib:

B4X: 
Sub Class_Globals
    Private fx As JFX
End Sub

'Initializes the object. You can add parameters to this method if needed.
Public Sub Initialize
  
End Sub

Sub download
    Dim j As HttpJob
    j.Initialize("", Me)
    j.Download("https://www.google.com")
    Wait For (j) JobDone(j As HttpJob)
    If j.Success Then
        Log(j.GetString)
    End If
    j.Release
End Sub


Mainapp:

B4X: 
    Dim t As TestLib
    t.Initialize
    t.download


but i get this error:

Waiting for debugger to connect...
Program started.
java.lang.RuntimeException: java.lang.RuntimeException: java.lang.NullPointerException
at anywheresoftware.b4a.keywords.Common.CallSub4(Common.java:496)
at anywheresoftware.b4a.keywords.Common.access$0(Common.java:467)
at anywheresoftware.b4a.keywords.Common$CallSubDelayedHelper.run(Common.java:541)
at com.sun.javafx.application.PlatformImpl.lambda$null$5(PlatformImpl.java:295)
at java.security.AccessController.doPrivileged(Native Method)
at com.sun.javafx.application.PlatformImpl.lambda$runLater$6(PlatformImpl.java:294)
at com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:95)
at com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
at com.sun.glass.ui.win.WinApplication.lambda$null$3(WinApplication.java:177)
at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.RuntimeException: java.lang.NullPointerException
at anywheresoftware.b4a.BA.raiseEvent2(BA.java:120)
at anywheresoftware.b4a.keywords.Common.CallSub4(Common.java:487)
... 9 more
Caused by: java.lang.NullPointerException
at b4j.example.httputils2service._submitjob(httputils2service.java:125)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at anywheresoftware.b4a.BA.raiseEvent2(BA.java:91)
... 10 more
 
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Blueforcer

Well-Known Member
Licensed User
Longtime User
aeric said:
I don't get error.
Click to expand...
Now, compile your demo to a library jar, create a new project and import that lib. Then do

B4X: 
Dim t As TestLib
t.Initialize
t.download

i tested it with your Demo and a fresh MainProject and still get this error
 
Upvote 0

Blueforcer

Well-Known Member
Licensed User
Longtime User
Using b4xlibs will not work with ABplugin,
I will try to use the Sourcecode of okhhtputils directly.

Too bad, It used to work in the past.
It's nice when everything becomes simpler and simpler, but it's unfavorable when possibilities are lost.
 
Last edited:
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