LineNumberFactory causes ArrayIndexOutOfBoundsException in JavaFX Application Thread.

[O5ten]

Hello Tomas,

I'm writing a tiny little live-updating SwingBuilder/MigLayout-editor for Groovy.

The primary use of RichTextFX is to make the editor easier to edit and read with the syntax-highlighting as well as LineNumbering in CodeArea.

The issue:
I'm running the app using Java 8 u11 in both Windows 7 x64 and Linux Mint 17 and i get an following ArrayIndexOutOfBoundsException when trying to use the LineNumberFactory as shown below.

        codeArea.setParagraphGraphicFactory(LineNumberFactory.get(codeArea));

The exception does not seem to originate from the LineNumberFactory but does not occur when i remove the line-numbering from the app.

The exception looks as follows. In Linux it occurs whenever i start the app, in Windows it occurs whenever i start fiddling around with the example-code the app gives.

Exception in thread "JavaFX Application Thread" java.lang.ArrayIndexOutOfBoundsException: -1
    at java.util.ArrayList.elementData(ArrayList.java:403)
    at java.util.ArrayList.get(ArrayList.java:416)
    at com.sun.javafx.collections.ObservableListWrapper.get(ObservableListWrapper.java:87)
    at com.sun.javafx.collections.VetoableListDecorator.get(VetoableListDecorator.java:265)
    at javafx.scene.Parent.updateCachedBounds(Parent.java:1593)
    at javafx.scene.Parent.recomputeBounds(Parent.java:1537)
    at javafx.scene.Parent.impl_computeGeomBounds(Parent.java:1388)
    at javafx.scene.layout.Region.impl_computeGeomBounds(Region.java:3028)
    at javafx.scene.Node.updateGeomBounds(Node.java:3526)
    at javafx.scene.Node.getGeomBounds(Node.java:3479)
    at javafx.scene.Node.getLocalBounds(Node.java:3427)
    at javafx.scene.Node.updateTxBounds(Node.java:3590)
    at javafx.scene.Node.getTransformedBounds(Node.java:3373)
    at javafx.scene.Node.updateBounds(Node.java:519)
    at javafx.scene.Parent.updateBounds(Parent.java:1722)
    at javafx.scene.Parent.updateBounds(Parent.java:1720)
    at javafx.scene.Parent.updateBounds(Parent.java:1720)
    at javafx.scene.Parent.updateBounds(Parent.java:1720)
    at javafx.scene.Parent.updateBounds(Parent.java:1720)
    at javafx.scene.Parent.updateBounds(Parent.java:1720)
    at javafx.scene.Scene$ScenePulseListener.pulse(Scene.java:2391)
    at com.sun.javafx.tk.Toolkit$3.run(Toolkit.java:321)
    at com.sun.javafx.tk.Toolkit$3.run(Toolkit.java:319)
    at java.security.AccessController.doPrivileged(Native Method)
    at com.sun.javafx.tk.Toolkit.runPulse(Toolkit.java:319)
    at com.sun.javafx.tk.Toolkit.firePulse(Toolkit.java:348)
    at com.sun.javafx.tk.quantum.QuantumToolkit.pulse(QuantumToolkit.java:479)
    at com.sun.javafx.tk.quantum.QuantumToolkit.pulse(QuantumToolkit.java:460)
    at com.sun.javafx.tk.quantum.QuantumToolkit$13.run(QuantumToolkit.java:327)
    at com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:95)
    at com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
    at com.sun.glass.ui.win.WinApplication.access$300(WinApplication.java:39)
    at com.sun.glass.ui.win.WinApplication$4$1.run(WinApplication.java:112)
    at java.lang.Thread.run(Thread.java:745)

Any suggestions?

Best regards,
Mikael

[TomasMikula]

Hi Mikael,

what version of RichTextFX are you using? I fixed a similar problem last night, in version 0.4.2.

Tomas

[O5ten]

0.4.1, just tested with 0.4.2 and it works fine. Thanks for the quick response!