What steps will reproduce the problem? 1. Create a FileObject which is not backed by a file:/// URI 2. Create a VFSJFileChooser(FileObject)

java.lang.IllegalArgumentException: URI scheme is not "file"
    at java.io.File.<init>(File.java:395)
    at com.googlecode.vfsjfilechooser2.utils.DefaultFileObjectConverter.convertFileObject(DefaultFileObjectConverter.java:51)
    at com.googlecode.vfsjfilechooser2.VFSJFileChooser.getCurrentDirectory(VFSJFileChooser.java:541)
    at com.googlecode.vfsjfilechooser2.plaf.metal.MetalVFSFileChooserUI$DirectoryComboBoxAction.actionPerformed(MetalVFSFileChooserUI.java:1569)
    at javax.swing.JComboBox.fireActionEvent(JComboBox.java:1260)
    at javax.swing.JComboBox.setSelectedItem(JComboBox.java:588)
    at com.googlecode.vfsjfilechooser2.plaf.metal.MetalVFSFileChooserUI.doDirectoryChanged(MetalVFSFileChooserUI.java:804)
    at com.googlecode.vfsjfilechooser2.plaf.metal.MetalVFSFileChooserUI.access$600(MetalVFSFileChooserUI.java:94)
    at com.googlecode.vfsjfilechooser2.plaf.metal.MetalVFSFileChooserUI$6.propertyChange(MetalVFSFileChooserUI.java:958)
    at java.beans.PropertyChangeSupport.fire(PropertyChangeSupport.java:335)
    at java.beans.PropertyChangeSupport.firePropertyChange(PropertyChangeSupport.java:327)
    at java.beans.PropertyChangeSupport.firePropertyChange(PropertyChangeSupport.java:263)
    at java.awt.Component.firePropertyChange(Component.java:8382)
    at com.googlecode.vfsjfilechooser2.VFSJFileChooser.setCurrentDirectoryObject(VFSJFileChooser.java:635)
    at com.googlecode.vfsjfilechooser2.VFSJFileChooser.<init>(VFSJFileChooser.java:229)
    at com.googlecode.vfsjfilechooser2.VFSJFileChooser.<init>(VFSJFileChooser.java:209)

Defeats the point, a little. :-(

If you construct empty and then set the CWD later, you get this:

java.lang.IllegalArgumentException: URI scheme is not "file"
    at java.io.File.<init>(File.java:395)
    at com.googlecode.vfsjfilechooser2.utils.DefaultFileObjectConverter.convertFileObject(DefaultFileObjectConverter.java:51)
    at com.googlecode.vfsjfilechooser2.VFSJFileChooser.getCurrentDirectory(VFSJFileChooser.java:541)
    at com.googlecode.vfsjfilechooser2.plaf.metal.MetalVFSFileChooserUI$DirectoryComboBoxAction.actionPerformed(MetalVFSFileChooserUI.java:1569)
    at javax.swing.JComboBox.fireActionEvent(JComboBox.java:1260)
    at javax.swing.JComboBox.setSelectedItem(JComboBox.java:588)
    at com.googlecode.vfsjfilechooser2.plaf.metal.MetalVFSFileChooserUI.doDirectoryChanged(MetalVFSFileChooserUI.java:804)
    at com.googlecode.vfsjfilechooser2.plaf.metal.MetalVFSFileChooserUI.access$600(MetalVFSFileChooserUI.java:94)
    at com.googlecode.vfsjfilechooser2.plaf.metal.MetalVFSFileChooserUI$6.propertyChange(MetalVFSFileChooserUI.java:958)
    at java.beans.PropertyChangeSupport.fire(PropertyChangeSupport.java:335)
    at java.beans.PropertyChangeSupport.firePropertyChange(PropertyChangeSupport.java:327)
    at java.beans.PropertyChangeSupport.firePropertyChange(PropertyChangeSupport.java:263)
    at java.awt.Component.firePropertyChange(Component.java:8382)
    at com.googlecode.vfsjfilechooser2.VFSJFileChooser.setCurrentDirectoryObject(VFSJFileChooser.java:635)

If you set multiple selection, then you get a GUI, but if you click on a file, you get this:

Failed to convert 'xxx:///foo.txt' into file!
java.lang.IllegalArgumentException: URI scheme is not "file"
    at java.io.File.<init>(File.java:395)
    at com.googlecode.vfsjfilechooser2.utils.DefaultFileObjectConverter.convertFileObject(DefaultFileObjectConverter.java:51)
    at com.googlecode.vfsjfilechooser2.VFSJFileChooser.getSelectedFiles(VFSJFileChooser.java:469)
    at com.googlecode.vfsjfilechooser2.filepane.VFSFilePane$Handler.mouseClicked(VFSFilePane.java:2069)
    at java.awt.AWTEventMulticaster.mouseClicked(AWTEventMulticaster.java:270)
    at java.awt.Component.processMouseEvent(Component.java:6508)
    at javax.swing.JComponent.processMouseEvent(JComponent.java:3312)
    at java.awt.Component.processEvent(Component.java:6270)
    at java.awt.Container.processEvent(Container.java:2229)
    at java.awt.Component.dispatchEventImpl(Component.java:4861)
    at java.awt.Container.dispatchEventImpl(Container.java:2287)
    at java.awt.Component.dispatchEvent(Component.java:4687)
    at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4832)
    at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4501)
    at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4422)
    at java.awt.Container.dispatchEventImpl(Container.java:2273)
    at java.awt.Window.dispatchEventImpl(Window.java:2719)
    at java.awt.Component.dispatchEvent(Component.java:4687)
    at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:735)
    at java.awt.EventQueue.access$200(EventQueue.java:103)
    at java.awt.EventQueue$3.run(EventQueue.java:694)
    at java.awt.EventQueue$3.run(EventQueue.java:692)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
    at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:87)
    at java.awt.EventQueue$4.run(EventQueue.java:708)
    at java.awt.EventQueue$4.run(EventQueue.java:706)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
    at java.awt.EventQueue.dispatchEvent(EventQueue.java:705)
    at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:242)
    at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:161)
    at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:154)
    at java.awt.WaitDispatchSupport$2.run(WaitDispatchSupport.java:182)
    at java.awt.WaitDispatchSupport$4.run(WaitDispatchSupport.java:221)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.awt.WaitDispatchSupport.enter(WaitDispatchSupport.java:219)
    at java.awt.Dialog.show(Dialog.java:1082)
    at java.awt.Component.show(Component.java:1651)
    at java.awt.Component.setVisible(Component.java:1603)
    at java.awt.Window.setVisible(Window.java:1014)
    at java.awt.Dialog.setVisible(Dialog.java:1005)
    at com.googlecode.vfsjfilechooser2.VFSJFileChooser.showDialog(VFSJFileChooser.java:802)
    at com.googlecode.vfsjfilechooser2.VFSJFileChooser.showOpenDialog(VFSJFileChooser.java:701)

I has a sad. :-( I is very sad kitten. Please fix me. I want to use nonlocal files.

The issue is caused by this: http://code.google.com/p/vfsjfilechooser2/wiki/Differences - changing the behaviour of methods without changing when they are called.

I was very familiar with the original vfsjfilechooser, so I know it worked OK for my needs.