B4J Question CLV and java.lang.IndexOutOfBoundsException

MarcoRome

Expert
Licensed User
Longtime User
Hi All.
I have the following code.
If I try to delete the last record immediately it crashes (Release)
Example if I delete randomly (1,3,2,4) everything ok, but when I get to the last one it gives the error java.lang.IndexOutOfBoundsException: Index 0 out of bounds for length 0

B4X:
Sub lbl_cancello_extra_selezionato_MouseClicked (EventData As MouseEvent)
    Dim b As B4XView = Sender
    Dim index_uno As Int  = clv.GetItemFromView(b.Parent)
    Log("Index: " & index_uno)
    Try
        clv.RemoveAt(index_uno)
    Catch
        Log(LastException)
    End Try
End Sub

But if add Sleep(0) the same code work:

B4X:
Sub lbl_cancello_extra_selezionato_MouseClicked (EventData As MouseEvent)
    Dim b As B4XView = Sender
    Dim index_uno As Int = clv.GetItemFromView(b.Parent)
    Sleep(0)
    Log("Index: " & index_uno)
    Try
        clv.RemoveAt(index_uno)
    Catch
        Log(LastException)
    End Try
End Sub

Bug or what ?
 

Attachments

  • TestCLVIndex.zip
    3.6 KB · Views: 40

MarcoRome

Expert
Licensed User
Longtime User
Hi @Erel

Index: 5
customlistview._getrawlistitem (java line: 449)
java.lang.IndexOutOfBoundsException: Index 5 out of bounds for length 5
at java.base/jdk.internal.util.Preconditions.outOfBounds(Preconditions.java:64)
at java.base/jdk.internal.util.Preconditions.outOfBoundsCheckIndex(Preconditions.java:70)
at java.base/jdk.internal.util.Preconditions.checkIndex(Preconditions.java:248)
at java.base/java.util.Objects.checkIndex(Objects.java:373)
at java.base/java.util.ArrayList.get(ArrayList.java:426)
at anywheresoftware.b4a.objects.collections.List.Get(List.java:122)
at b4j.example.customlistview._getrawlistitem(customlistview.java:449)
at b4j.example.customlistview$ResumableSub_PanelClickHandler.resume(customlistview.java:775)
at b4j.example.customlistview._panelclickhandler(customlistview.java:751)
at b4j.example.customlistview._panel_mouseclicked(customlistview.java:742)
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:564)
at anywheresoftware.b4a.BA.raiseEvent2(BA.java:111)
at anywheresoftware.b4a.BA.raiseEvent(BA.java:98)
at anywheresoftware.b4j.objects.NodeWrapper$1.handle(NodeWrapper.java:109)
at anywheresoftware.b4j.objects.NodeWrapper$1.handle(NodeWrapper.java:1)
at javafx.base/com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(CompositeEventHandler.java:86)
at javafx.base/com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:234)
at javafx.base/com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:191)
at javafx.base/com.sun.javafx.event.CompositeEventDispatcher.dispatchBubblingEvent(CompositeEventDispatcher.java:59)
at javafx.base/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:58)
at javafx.base/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at javafx.base/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
at javafx.base/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at javafx.base/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
at javafx.base/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at javafx.base/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
at javafx.base/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at javafx.base/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
at javafx.base/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at javafx.base/com.sun.javafx.event.EventUtil.fireEventImpl(EventUtil.java:74)
at javafx.base/com.sun.javafx.event.EventUtil.fireEvent(EventUtil.java:54)
at javafx.base/javafx.event.Event.fireEvent(Event.java:198)
at javafx.graphics/javafx.scene.Scene$ClickGenerator.postProcess(Scene.java:3597)
at javafx.graphics/javafx.scene.Scene$MouseHandler.process(Scene.java:3899)
at javafx.graphics/javafx.scene.Scene.processMouseEvent(Scene.java:1885)
at javafx.graphics/javafx.scene.Scene$ScenePeerListener.mouseEvent(Scene.java:2618)
at javafx.graphics/com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(GlassViewEventHandler.java:409)
at javafx.graphics/com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(GlassViewEventHandler.java:299)
at java.base/java.security.AccessController.doPrivileged(AccessController.java:391)
at javafx.graphics/com.sun.javafx.tk.quantum.GlassViewEventHandler.lambda$handleMouseEvent$2(GlassViewEventHandler.java:447)
at javafx.graphics/com.sun.javafx.tk.quantum.QuantumToolkit.runWithoutRenderLock(QuantumToolkit.java:412)
at javafx.graphics/com.sun.javafx.tk.quantum.GlassViewEventHandler.handleMouseEvent(GlassViewEventHandler.java:446)
at javafx.graphics/com.sun.glass.ui.View.handleMouseEvent(View.java:556)
at javafx.graphics/com.sun.glass.ui.View.notifyMouse(View.java:942)
at javafx.graphics/com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
at javafx.graphics/com.sun.glass.ui.win.WinApplication.lambda$runLoop$3(WinApplication.java:174)
at java.base/java.lang.Thread.run(Thread.java:832)
 
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