I have a ListView and want to programmatically select multiple indexes inside Platform.runLater()
Problem: if the indexes I want to select are sequential (for example, {5,6,7} ), the selection works fine. If there is a space (for example, {5,7,8} ), an OOB exception is thrown.
java.lang.IndexOutOfBoundsException: [ fromIndex: 0, toIndex: 5, size: 3 ]
I believe that there may be a bug in Java9 (this exception appeared after we upgraded from Java8 to 9) MultipleSelectionModelBase#set .
For indices {5,6,7} method calls _nextAdd(from, to) with values 0 and 3. (0 inclusive, 3 exceptional, I assume that it refers to indices 0,1,2 in my array {5,6,7} )
For indices {5,7,8} it calls _nextAdd(0,2) for {5} and _nextAdd(2,5) for indices {7,8} .
I believe that instead it should be _nextAdd(0,1) and _nextAdd(1,3) , since my array has only 3 elements, not 5.
The exception ultimately occurs when javafx.collections.ListChangeListener#getAddedSubList calls getList().subList(getFrom(), getTo()) with parameters 0.5
I googled for error reporting and could not find anything about this problem.
I thought I would ask here before submitting a bug report.
MVCE
Run the program, click the "Select 578" button. Exception thrown (and caught): [fromIndex: 0, toIndex: 5, size: 3]
OR
Comment out the lines of "clearSelection".
Run the program, click "Select 567", then click "Select 578".
Exception thrown (and caught): [fromIndex: 8, toIndex: 9, size: 4]
package sample; import javafx.application.Application; import javafx.collections.FXCollections; import javafx.collections.ObservableList; import javafx.scene.Scene; import javafx.scene.control.Button; import javafx.scene.control.ListView; import javafx.scene.control.SelectionMode; import javafx.scene.layout.VBox; import javafx.stage.Stage; public class Main extends Application { @Override public void start(Stage primaryStage) throws Exception{ ObservableList<String> items = FXCollections.observableArrayList( "one","two","three","four","five","six","seven","eight","nine","ten"); ListView<String> list = new ListView<>(items); list.getSelectionModel().setSelectionMode(SelectionMode.MULTIPLE); Button select567Button = new Button(); select567Button.setText("Select 567"); select567Button.setOnAction(event -> { list.getSelectionModel().clearSelection(); list.getSelectionModel().selectIndices(5, 6, 7); }); Button select578Button = new Button(); select578Button.setText("Select 578"); select578Button.setOnAction(event -> { list.getSelectionModel().clearSelection(); list.getSelectionModel().selectIndices(5, 7, 8); }); VBox root = new VBox(select567Button, select578Button, list); Scene scene = new Scene(root); primaryStage.setScene(scene); primaryStage.show(); } public static void main(String[] args) { launch(args); } }
Java -version
java version "9" Java(TM) SE Runtime Environment (build 9+181) Java HotSpot(TM) 64-Bit Server VM (build 9+181, mixed mode)
StackTrace (when starting the program and immediately selecting the "578" button before anything else):
Exception in thread "JavaFX Application Thread" java.lang.IndexOutOfBoundsException: [ fromIndex: 0, toIndex: 5, size: 3 ] at javafx.controls/com.sun.javafx.scene.control.ReadOnlyUnbackedObservableList.subList(ReadOnlyUnbackedObservableList.java:170) at javafx.base/javafx.collections.ListChangeListener$Change.getAddedSubList(ListChangeListener.java:242) at javafx.controls/com.sun.javafx.scene.control.behavior.ListViewBehavior.lambda$new$55(ListViewBehavior.java:281) at javafx.base/javafx.collections.WeakListChangeListener.onChanged(WeakListChangeListener.java:88) at javafx.base/com.sun.javafx.collections.ListListenerHelper$Generic.fireValueChangedEvent(ListListenerHelper.java:329) at javafx.base/com.sun.javafx.collections.ListListenerHelper.fireValueChangedEvent(ListListenerHelper.java:73) at javafx.base/javafx.collections.ObservableListBase.fireChange(ObservableListBase.java:233) at javafx.base/javafx.collections.ListChangeBuilder.commit(ListChangeBuilder.java:482) at javafx.base/javafx.collections.ListChangeBuilder.endChange(ListChangeBuilder.java:541) at javafx.base/javafx.collections.ObservableListBase.endChange(ObservableListBase.java:205) at javafx.controls/com.sun.javafx.scene.control.ReadOnlyUnbackedObservableList._endChange(ReadOnlyUnbackedObservableList.java:63) at javafx.controls/javafx.scene.control.MultipleSelectionModelBase$SelectedIndicesList._endChange(MultipleSelectionModelBase.java:895) at javafx.controls/javafx.scene.control.MultipleSelectionModelBase$SelectedIndicesList.set(MultipleSelectionModelBase.java:785) at javafx.controls/javafx.scene.control.MultipleSelectionModelBase.selectIndices(MultipleSelectionModelBase.java:490) at sample.Main.lambda$start$1(Main.java:33) at javafx.base/com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(CompositeEventHandler.java:86) at javafx.base/com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:238) at javafx.base/com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:191) at javafx.base/com.sun.javafx.event.CompositeEventDispatcher.dispatchBubblingEvent(CompositeEventDispatcher.java:59) at javafx.base/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:58) at javafx.base/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114) at javafx.base/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56) at javafx.base/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114) at javafx.base/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56) at javafx.base/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114) at javafx.base/com.sun.javafx.event.EventUtil.fireEventImpl(EventUtil.java:74) at javafx.base/com.sun.javafx.event.EventUtil.fireEvent(EventUtil.java:49) at javafx.base/javafx.event.Event.fireEvent(Event.java:198) at javafx.graphics/javafx.scene.Node.fireEvent(Node.java:8863) at javafx.controls/javafx.scene.control.Button.fire(Button.java:200) at javafx.controls/com.sun.javafx.scene.control.behavior.ButtonBehavior.mouseReleased(ButtonBehavior.java:206) at javafx.controls/com.sun.javafx.scene.control.inputmap.InputMap.handle(InputMap.java:274) at javafx.base/com.sun.javafx.event.CompositeEventHandler$NormalEventHandlerRecord.handleBubblingEvent(CompositeEventHandler.java:218) at javafx.base/com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(CompositeEventHandler.java:80) at javafx.base/com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:238) 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.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$MouseHandler.process(Scene.java:3876) at javafx.graphics/javafx.scene.Scene$MouseHandler.access$1300(Scene.java:3604) at javafx.graphics/javafx.scene.Scene.processMouseEvent(Scene.java:1874) at javafx.graphics/javafx.scene.Scene$ScenePeerListener.mouseEvent(Scene.java:2613) at javafx.graphics/com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(GlassViewEventHandler.java:397) at javafx.graphics/com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(GlassViewEventHandler.java:295) at java.base/java.security.AccessController.doPrivileged(Native Method) at javafx.graphics/com.sun.javafx.tk.quantum.GlassViewEventHandler.lambda$handleMouseEvent$2(GlassViewEventHandler.java:434) at javafx.graphics/com.sun.javafx.tk.quantum.QuantumToolkit.runWithoutRenderLock(QuantumToolkit.java:389) at javafx.graphics/com.sun.javafx.tk.quantum.GlassViewEventHandler.handleMouseEvent(GlassViewEventHandler.java:433) at javafx.graphics/com.sun.glass.ui.View.handleMouseEvent(View.java:556) at javafx.graphics/com.sun.glass.ui.View.notifyMouse(View.java:942) at javafx.graphics/com.sun.glass.ui.win.WinApplication._runLoop(Native Method) at javafx.graphics/com.sun.glass.ui.win.WinApplication.lambda$runLoop$3(WinApplication.java:189) at java.base/java.lang.Thread.run(Thread.java:844)