Hi Swing-dev, I tried the example from oracle https://docs.oracle.com/javase/tutorial/displayCode.html?code=https://docs.oracle.com/javase/tutorial/uiswing/examples/components/FileChooserDemoProject/src/components/FileChooserDemo.java
When click directories very quick, I got the below exceptions. DO you have any ideas? Thanks! Exception in thread "AWT-EventQueue-0" java.lang.IndexOutOfBoundsException: Invalid index at java.desktop/javax.swing.DefaultRowSorter.convertUnsortedUnfiltered(DefaultRowSorter.java:523) at java.desktop/javax.swing.DefaultRowSorter.convertRowIndexToModel(DefaultRowSorter.java:506) at java.desktop/sun.swing.FilePane$SortableListModel.getElementAt(FilePane.java:676) at java.desktop/javax.swing.JList.getSelectedValue(JList.java:2356) at java.desktop/javax.swing.plaf.basic.BasicFileChooserUI$Handler.valueChanged(BasicFileChooserUI.java:696) at java.desktop/javax.swing.JList.fireSelectionValueChanged(JList.java:1804) at java.desktop/javax.swing.JList$ListSelectionHandler.valueChanged(JList.java:1818) at java.desktop/javax.swing.DefaultListSelectionModel.fireValueChanged(DefaultListSelectionModel.java:219) at java.desktop/javax.swing.DefaultListSelectionModel.fireValueChanged(DefaultListSelectionModel.java:186) at java.desktop/javax.swing.DefaultListSelectionModel.setValueIsAdjusting(DefaultListSelectionModel.java:723) at java.desktop/javax.swing.JList.setValueIsAdjusting(JList.java:2152) at java.desktop/javax.swing.plaf.basic.BasicListUI$Handler.mouseReleased(BasicListUI.java:2957) at java.desktop/java.awt.AWTEventMulticaster.mouseReleased(AWTEventMulticaster.java:298) at java.desktop/java.awt.AWTEventMulticaster.mouseReleased(AWTEventMulticaster.java:297) at java.desktop/java.awt.Component.processMouseEvent(Component.java:6589) at java.desktop/javax.swing.JComponent.processMouseEvent(JComponent.java:3342) at java.desktop/java.awt.Component.processEvent(Component.java:6354) at java.desktop/java.awt.Container.processEvent(Container.java:2261) at java.desktop/java.awt.Component.dispatchEventImpl(Component.java:4966) at java.desktop/java.awt.Container.dispatchEventImpl(Container.java:2319) at java.desktop/java.awt.Component.dispatchEvent(Component.java:4798) at java.desktop/java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4914) at java.desktop/java.awt.LightweightDispatcher.processMouseEvent(Container.java:4543) at java.desktop/java.awt.LightweightDispatcher.dispatchEvent(Container.java:4484) at java.desktop/java.awt.Container.dispatchEventImpl(Container.java:2305) at java.desktop/java.awt.Window.dispatchEventImpl(Window.java:2772) at java.desktop/java.awt.Component.dispatchEvent(Component.java:4798) at java.desktop/java.awt.EventQueue.dispatchEventImpl(EventQueue.java:772) at java.desktop/java.awt.EventQueue.access$600(EventQueue.java:97) at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:721) at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:715) at java.base/java.security.AccessController.doPrivileged(Native Method) at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:87) at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:97) at java.desktop/java.awt.EventQueue$5.run(EventQueue.java:745) at java.desktop/java.awt.EventQueue$5.run(EventQueue.java:743) at java.base/java.security.AccessController.doPrivileged(Native Method) at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:87) at java.desktop/java.awt.EventQueue.dispatchEvent(EventQueue.java:742) at java.desktop/java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:203) at java.desktop/java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:124) at java.desktop/java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:117) at java.desktop/java.awt.WaitDispatchSupport$2.run(WaitDispatchSupport.java:190) at java.desktop/java.awt.WaitDispatchSupport$4.run(WaitDispatchSupport.java:235) at java.desktop/java.awt.WaitDispatchSupport$4.run(WaitDispatchSupport.java:233) at java.base/java.security.AccessController.doPrivileged(Native Method) at java.desktop/java.awt.WaitDispatchSupport.enter(WaitDispatchSupport.java:233) at java.desktop/java.awt.Dialog.show(Dialog.java:1070) at java.desktop/javax.swing.JFileChooser.showDialog(JFileChooser.java:756) at java.desktop/javax.swing.JFileChooser.showOpenDialog(JFileChooser.java:653) at FileChooserDemo.actionPerformed(FileChooserDemo.java:76) at java.desktop/javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1967) at java.desktop/javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2308) at java.desktop/javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:405) at java.desktop/javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:262) at java.desktop/javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:270) at java.desktop/java.awt.Component.processMouseEvent(Component.java:6589) at java.desktop/javax.swing.JComponent.processMouseEvent(JComponent.java:3342) at java.desktop/java.awt.Component.processEvent(Component.java:6354) at java.desktop/java.awt.Container.processEvent(Container.java:2261) at java.desktop/java.awt.Component.dispatchEventImpl(Component.java:4966) at java.desktop/java.awt.Container.dispatchEventImpl(Container.java:2319) at java.desktop/java.awt.Component.dispatchEvent(Component.java:4798) at java.desktop/java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4914) at java.desktop/java.awt.LightweightDispatcher.processMouseEvent(Container.java:4543) at java.desktop/java.awt.LightweightDispatcher.dispatchEvent(Container.java:4484) at java.desktop/java.awt.Container.dispatchEventImpl(Container.java:2305) at java.desktop/java.awt.Window.dispatchEventImpl(Window.java:2772) at java.desktop/java.awt.Component.dispatchEvent(Component.java:4798) at java.desktop/java.awt.EventQueue.dispatchEventImpl(EventQueue.java:772) at java.desktop/java.awt.EventQueue.access$600(EventQueue.java:97) at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:721) at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:715) at java.base/java.security.AccessController.doPrivileged(Native Method) at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:87) at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:97) at java.desktop/java.awt.EventQueue$5.run(EventQueue.java:745) at java.desktop/java.awt.EventQueue$5.run(EventQueue.java:743) at java.base/java.security.AccessController.doPrivileged(Native Method) at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:87) at java.desktop/java.awt.EventQueue.dispatchEvent(EventQueue.java:742) at java.desktop/java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:203) at java.desktop/java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:124) at java.desktop/java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:113) at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:109) at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101) at java.desktop/java.awt.EventDispatchThread.run(EventDispatchThread.java:90) Thanks, Tristan