Got ArrayIndexOutOfBoundsException for following sample:

import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.control.Label;
import javafx.scene.layout.HBox;
import javafx.stage.Stage;

public class FXRenderer extends Application {

    public static void main(String[] args) {
        launch(args);
    }

    @Override
    public void start(Stage stage) throws Exception {
        StringBuilder builder = new StringBuilder();
        for (int character = Character.MIN_CODE_POINT; character < Character.MAX_CODE_POINT; character++) {
            char[] chars = Character.toChars(character);
            builder.append(chars);
        }
        HBox pane = new HBox();
        //Label text = new Label(builder.toString().substring(0, 10000));
        Label text = new Label(builder.toString());
        text.setWrapText(true);
        pane.getChildren().add(text);
        Scene scene = new Scene(pane, 1024, 1024);
        stage.setScene(scene);
        stage.show();
    }
}

Exception in Application start method
Exception in thread "main" java.lang.RuntimeException: Exception in Application start method
        at com.sun.javafx.application.LauncherImpl.launchApplication1(LauncherImpl.java:376)
        at com.sun.javafx.application.LauncherImpl.access$000(LauncherImpl.java:47)
        at com.sun.javafx.application.LauncherImpl$1.run(LauncherImpl.java:115)
        at java.lang.Thread.run(Thread.java:662)
Caused by: java.lang.ArrayIndexOutOfBoundsException: 4308762
        at com.sun.javafx.text.TextRun.getWrapIndex(TextRun.java:191)
        at com.sun.javafx.text.TextLayout.layout(TextLayout.java:504)
        at com.sun.javafx.sg.prism.NGTextHelper.buildTextLines(NGTextHelper.java:1065)
        at com.sun.javafx.sg.prism.NGTextHelper.validateText(NGTextHelper.java:983)
        at com.sun.javafx.sg.prism.NGTextHelper.computeBoundsLogical(NGTextHelper.java:395)
        at com.sun.javafx.sg.prism.NGTextHelper.computeLayoutBounds(NGTextHelper.java:354)
        at javafx.scene.text.Text.impl_computeLayoutBoundsInt(Text.java:1217)
        at javafx.scene.text.Text.impl_computeLayoutBounds(Text.java:1233)
        at javafx.scene.Node$16.computeBounds(Node.java:2875)
        at javafx.scene.Node$LazyBoundsProperty.get(Node.java:7662)
        at javafx.scene.Node$LazyBoundsProperty.get(Node.java:7632)
        at javafx.scene.Node.getLayoutBounds(Node.java:2890)
        at com.sun.javafx.scene.control.skin.Utils.computeTextHeight(Utils.java:70)
        at com.sun.javafx.scene.control.skin.LabeledSkinBase.computePrefHeight(LabeledSkinBase.java:783)
        at javafx.scene.control.Control.computePrefHeight(Control.java:449)
        at javafx.scene.Parent.prefHeight(Parent.java:878)
        at javafx.scene.layout.Region.prefHeight(Region.java:1170)
        at com.sun.javafx.scene.control.skin.LabeledSkinBase.computeMaxHeight(LabeledSkinBase.java:805)
        at javafx.scene.control.Control.computeMaxHeight(Control.java:429)
        at javafx.scene.layout.Region.maxHeight(Region.java:1204)
        at javafx.scene.layout.Region.layoutInArea(Region.java:1806)
        at javafx.scene.layout.Region.layoutInArea(Region.java:1768)
        at javafx.scene.layout.HBox.layoutChildren(HBox.java:529)
        at javafx.scene.Parent.layout(Parent.java:1012)
        at javafx.scene.Scene.layoutDirtyRoots(Scene.java:517)
        at javafx.scene.Scene.doLayoutPass(Scene.java:488)
        at javafx.scene.Scene.preferredSize(Scene.java:1496)
        at javafx.scene.Scene.impl_preferredSize(Scene.java:1523)
        at javafx.stage.Window$10.invalidated(Window.java:723)
        at javafx.beans.property.BooleanPropertyBase.markInvalid(BooleanPropertyBase.java:106)
        at javafx.beans.property.BooleanPropertyBase.set(BooleanPropertyBase.java:140)
        at javafx.stage.Window.setShowing(Window.java:786)
        at javafx.stage.Window.show(Window.java:801)
        at javafx.stage.Stage.show(Stage.java:230)
        at main.FXRenderer.start(FXRenderer.java:33)
        at com.sun.javafx.application.LauncherImpl$5.run(LauncherImpl.java:319)
        at com.sun.javafx.application.PlatformImpl$5.run(PlatformImpl.java:207)
        at com.sun.javafx.application.PlatformImpl$4.run(PlatformImpl.java:173)
        at com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
        at com.sun.glass.ui.win.WinApplication.access$100(Unknown Source)
        at com.sun.glass.ui.win.WinApplication$3$1.run(Unknown Source)
        ... 1 more
Java Result: 1

Even limited (first 10000 symbols) sequence makes the window unresponsive. An attempt to resize it may also leads to ArrayIndexOutOfBoundsException:

java.lang.ArrayIndexOutOfBoundsException: 64
        at com.sun.javafx.text.TextRun.getWrapIndex(TextRun.java:191)
        at com.sun.javafx.text.TextLayout.layout(TextLayout.java:504)
        at com.sun.javafx.sg.prism.NGTextHelper.buildTextLines(NGTextHelper.java:1065)
        at com.sun.javafx.sg.prism.NGTextHelper.validateText(NGTextHelper.java:983)
        at com.sun.javafx.sg.prism.NGTextHelper.computeBoundsLogical(NGTextHelper.java:395)
        at com.sun.javafx.sg.prism.NGTextHelper.computeLayoutBounds(NGTextHelper.java:354)
        at javafx.scene.text.Text.impl_computeLayoutBoundsInt(Text.java:1217)
        at javafx.scene.text.Text.impl_computeLayoutBounds(Text.java:1233)
        at javafx.scene.Node$16.computeBounds(Node.java:2875)
        at javafx.scene.Node$LazyBoundsProperty.get(Node.java:7662)
        at javafx.scene.Node$LazyBoundsProperty.get(Node.java:7632)
        at javafx.scene.Node.getLayoutBounds(Node.java:2890)
        at com.sun.javafx.scene.control.skin.Utils.computeTextHeight(Utils.java:70)
        at com.sun.javafx.scene.control.skin.LabeledSkinBase.computePrefHeight(LabeledSkinBase.java:783)
        at javafx.scene.control.Control.computePrefHeight(Control.java:449)
        at javafx.scene.Parent.prefHeight(Parent.java:878)
        at javafx.scene.layout.Region.prefHeight(Region.java:1170)
        at com.sun.javafx.scene.control.skin.LabeledSkinBase.computeMaxHeight(LabeledSkinBase.java:805)
        at javafx.scene.control.Control.computeMaxHeight(Control.java:429)
        at javafx.scene.layout.Region.maxHeight(Region.java:1204)
        at javafx.scene.layout.Region.layoutInArea(Region.java:1806)
        at javafx.scene.layout.Region.layoutInArea(Region.java:1768)
        at javafx.scene.layout.HBox.layoutChildren(HBox.java:529)
        at javafx.scene.Parent.layout(Parent.java:1012)
        at javafx.scene.Scene.layoutDirtyRoots(Scene.java:517)
        at javafx.scene.Scene.doLayoutPass(Scene.java:488)
        at javafx.scene.Scene.access$3900(Scene.java:172)
        at javafx.scene.Scene$ScenePulseListener.pulse(Scene.java:2222)
        at com.sun.javafx.tk.Toolkit.firePulse(Toolkit.java:346)
        at com.sun.javafx.tk.quantum.QuantumToolkit.pulse(QuantumToolkit.java:502)
        at com.sun.javafx.tk.quantum.QuantumToolkit$11.run(QuantumToolkit.java:355)
        at com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
        at com.sun.glass.ui.win.WinApplication.access$100(Unknown Source)
        at com.sun.glass.ui.win.WinApplication$3$1.run(Unknown Source)
        at java.lang.Thread.run(Thread.java:662)