How to get the selected virtual file from a DnDEvent

DnDEvent works together with the standard AWT drag & drop mechanism, which has no concept of virtual files. To get the list of dragged files from a DnDEvent, use:

if (dndEvent.isDataFlavorSupported(DataFlavor.javaFileListFlavor)) {
    List<File> files = (List<File>) dndEvent.getTransferData(DataFlavor.javaFileListFlavor);
    // proces the files
}