B4J Question HELP Please: Class->Library to send request to API server

[FabioAlbaneseTv]

Hi
I'm trying to realize a library, starting from a class, to send requests and get answers from my server using API.

This is an example of simple main code (a form with a button)

#Region Project Attributes
    #MainFormWidth: 600
    #MainFormHeight: 600
#End Region

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
End Sub

Sub Button1_Click
    Dim myTestApi As test_api_class
    myTestApi.Initialize()
    wait for (myTestApi.GetFromServer("testparm")) complete (Result As Int)
    If myTestApi.GentAnswer<>"" Then
        Log(myTestApi.GentAnswer)
    End If
End Sub

that call this class module called test_api_class

Sub Class_Globals
    Dim myHttp             As HttpJob
    Private myAnswer         As String
End Sub

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

public Sub GentAnswer () As String
    Return myAnswer
End Sub

public Sub GetFromServer(pParm As String ) As ResumableSub
    myHttp.Initialize("http",Me)
    myHttp.PostString( "https://www.fabioalbanese.it/api/apitest.php",pParm)
    myHttp.GetRequest()
    Wait For (myHttp) JobDone (myResp As HttpJob)
    If myResp.Success Then
        myAnswer=myResp.GetString
    End If
    Return 1
End Sub

If the class module is inside the project, it works fine.

But, if I compile the class module as s library called "test_api_class" and I add the library to the main project (removing the class module), I obtain 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:523)
    at anywheresoftware.b4a.keywords.Common.access$0(Common.java:494)
    at anywheresoftware.b4a.keywords.Common$CallSubDelayedHelper.run(Common.java:568)
    at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runLater$10(PlatformImpl.java:428)
    at java.base/java.security.AccessController.doPrivileged(Native Method)
    at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runLater$11(PlatformImpl.java:427)
    at javafx.graphics/com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:96)
    at javafx.graphics/com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
    at javafx.graphics/com.sun.glass.ui.win.WinApplication.lambda$runLoop$3(WinApplication.java:174)
    at java.base/java.lang.Thread.run(Thread.java:834)
Caused by: java.lang.RuntimeException: java.lang.NullPointerException
    at anywheresoftware.b4a.BA.raiseEvent2(BA.java:140)
    at anywheresoftware.b4a.keywords.Common.CallSub4(Common.java:514)
    ... 9 more
Caused by: java.lang.NullPointerException
    at b4j.example.httputils2service._submitjob(httputils2service.java:147)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    at anywheresoftware.b4a.BA.raiseEvent2(BA.java:111)
    ... 10 more

I really don't understand why. The code is the same, the class has the same name
Surely I missed something somewhere, but...
Thanks to anyone can help me

 

[Erel]

Note that you are not releasing the httpjob.

It is much easier and better to work with b4xlibs. Simply zip the modules and change the extension to b4xlib.

 

[FabioAlbaneseTv]

Note that you are not releasing the httpjob.

It is much easier and better to work with b4xlibs. Simply zip the modules and change the extension to b4xlib.

Thank you a lot, using the b4xlibs format, it works perfectly.

And... yes, you're right, I had forgotten to release httpjobs ?