import sun.awt.shell.ShellFolder; //导入依赖的package包/类
public void mouseClicked(MouseEvent e) {
    if (SwingUtilities.isLeftMouseButton(e) && e.getClickCount() == 2) {
        int index = list.locationToIndex(e.getPoint());
        if (index >= 0) {
            File f = (File) list.getModel().getElementAt(index);
            try {
                // Strip trailing ".."
                f = ShellFolder.getNormalizedFile(f);
            } catch (IOException ex) {
                // That's ok, we'll use f as is
            }
            if (getFileChooser().isTraversable(f)) {
                list.clearSelection();
                if (getFileChooser().getCurrentDirectory().equals(f)){
                    rescanCurrentDirectory(getFileChooser());
                } else {
                    getFileChooser().setCurrentDirectory(f);
                }
            } else {
                getFileChooser().approveSelection();
            }
        }
    }
}
 

import sun.awt.shell.ShellFolder; //导入依赖的package包/类
public void actionPerformed(ActionEvent e) {
    if (isDirectorySelected()) {
        File dir = getDirectory();
        try {
            // Strip trailing ".."
            if (dir != null) {
                dir = ShellFolder.getNormalizedFile(dir);
            }
        } catch (IOException ex) {
            // Ok, use f as is
        }
        if (getFileChooser().getCurrentDirectory().equals(dir)) {
            directoryList.clearSelection();
            fileList.clearSelection();
            ListSelectionModel sm = fileList.getSelectionModel();
            if (sm instanceof DefaultListSelectionModel) {
                ((DefaultListSelectionModel)sm).moveLeadSelectionIndex(0);
                sm.setAnchorSelectionIndex(0);
            }
            rescanCurrentDirectory(getFileChooser());
            return;
        }
    }
    super.actionPerformed(e);
}
 

import sun.awt.shell.ShellFolder; //导入依赖的package包/类
public void mouseClicked(MouseEvent evt) {
    // Note: we can't depend on evt.getSource() because of backward
    // compatibility
    if (list != null &&
        SwingUtilities.isLeftMouseButton(evt) &&
        (evt.getClickCount()%2 == 0)) {

        int index = SwingUtilities2.loc2IndexFileList(list, evt.getPoint());
        if (index >= 0) {
            File f = (File)list.getModel().getElementAt(index);
            try {
                // Strip trailing ".."
                f = ShellFolder.getNormalizedFile(f);
            } catch (IOException ex) {
                // That's ok, we'll use f as is
            }
            if(getFileChooser().isTraversable(f)) {
                list.clearSelection();
                changeDirectory(f);
            } else {
                getFileChooser().approveSelection();
            }
        }
    }
}
 

import sun.awt.shell.ShellFolder; //导入依赖的package包/类
public static void main(String[] args) {
    if (OSInfo.getOSType() != OSInfo.OSType.WINDOWS) {
        System.out.println("The test was skipped because it is sensible only for Windows.");

        return;
    }

    for (String key : KEYS) {
        Image image = (Image) ShellFolder.get(key);

        if (image == null) {
            throw new RuntimeException("The image '" + key + "' not found.");
        }

        if (image != ShellFolder.get(key)) {
            throw new RuntimeException("The image '" + key + "' is not cached.");
        }
    }

    System.out.println("The test passed.");
}
 

import sun.awt.shell.ShellFolder; //导入依赖的package包/类
public static void main(String[] args) throws Exception {
    if (OSInfo.getOSType() != OSInfo.OSType.WINDOWS) {
        System.out.println("The test is suitable only for Windows, skipped.");

        return;
    }

    SwingUtilities.invokeAndWait(new Runnable() {
        public void run() {
            File[] files = (File[]) ShellFolder.get("fileChooserComboBoxFolders");

            for (File file : files) {
                if (file instanceof ShellFolder && ((ShellFolder) file).isLink()) {
                    throw new RuntimeException("Link shouldn't be in FileChooser combobox, " + file.getPath());
                }
            }
        }
    });
}