问题
I have a pretty nasty bug on JavaFX (jdk 1.8.0_91) occurring in my application in which several progress bars are displayed and update (randomly or at the same time). Sometimes, especially when a progress bar is filled (it had a style class to the progress bar) but sometimes also in the middle of nothing, the software blocks and I have this trace appearing several times (not always the same number, but the last one was 27 times) :
Exception in thread "JavaFX Application Thread" java.lang.ArrayIndexOutOfBoundsException: -1
at java.util.ArrayList.elementData(ArrayList.java:418)
at java.util.ArrayList.get(ArrayList.java:431)
at com.sun.javafx.collections.ObservableListWrapper.get(ObservableListWrapper.java:89)
at com.sun.javafx.collections.VetoableListDecorator.get(VetoableListDecorator.java:306)
at javafx.scene.Parent.updateCachedBounds(Parent.java:1591)
at javafx.scene.Parent.recomputeBounds(Parent.java:1535)
at javafx.scene.Parent.impl_computeGeomBounds(Parent.java:1388)
at javafx.scene.layout.Region.impl_computeGeomBounds(Region.java:3078)
at javafx.scene.Node.updateGeomBounds(Node.java:3577)
at javafx.scene.Node.getGeomBounds(Node.java:3530)
at javafx.scene.Node.getLocalBounds(Node.java:3478)
at javafx.scene.Node.updateTxBounds(Node.java:3641)
at javafx.scene.Node.getTransformedBounds(Node.java:3424)
at javafx.scene.Node.updateBounds(Node.java:559)
at javafx.scene.Parent.updateBounds(Parent.java:1719)
at javafx.scene.Parent.updateBounds(Parent.java:1717)
at javafx.scene.Parent.updateBounds(Parent.java:1717)
at javafx.scene.Parent.updateBounds(Parent.java:1717)
at javafx.scene.Parent.updateBounds(Parent.java:1717)
at javafx.scene.Parent.updateBounds(Parent.java:1717)
at javafx.scene.Parent.updateBounds(Parent.java:1717)
at javafx.scene.Scene$ScenePulseListener.pulse(Scene.java:2404)
at com.sun.javafx.tk.Toolkit.lambda$runPulse$30(Toolkit.java:355)
at java.security.AccessController.doPrivileged(Native Method)
at com.sun.javafx.tk.Toolkit.runPulse(Toolkit.java:354)
at com.sun.javafx.tk.Toolkit.firePulse(Toolkit.java:381)
at com.sun.javafx.tk.quantum.QuantumToolkit.pulse(QuantumToolkit.java:510)
at com.sun.javafx.tk.quantum.QuantumToolkit.pulse(QuantumToolkit.java:490)
at com.sun.javafx.tk.quantum.QuantumToolkit.lambda$runToolkit$404(QuantumToolkit.java:319)
at com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:95)
at com.sun.glass.ui.gtk.GtkApplication._runLoop(Native Method)
at com.sun.glass.ui.gtk.GtkApplication.lambda$null$49(GtkApplication.java:139)
at java.lang.Thread.run(Thread.java:745)
The 27 traces are then followed by a huge amount of this message :
Exception in thread "JavaFX Application Thread" java.lang.ArrayIndexOutOfBoundsException
Since there is no sign of my own code in the exception stacktrace, I am a bit lost. Does anyone have an idea where this could come from ?
回答1:
The issue is pretty common if there is a modification of the UI that is not on the JavaFX thread. Unfortunately in this case you get an Array Index out of bounds exception and no real clue where the issue happens.
See also (search result for "ObservableListWrapper.java:89"):
- https://bugs.openjdk.java.net/browse/JDK-8163078
- https://bugs.openjdk.java.net/browse/JDK-8096304
- JavaFX throws ArrayIndexOutOfBoundsException
- Collection in JavaFX
- JavaFx - endless Exception in thread "JavaFX Application Thread" java.lang.NullPointerException
来源：https://stackoverflow.com/questions/37529446/progress-bars-update-crash-javafx