public FileChooserDescriptor getFileChooserDescriptor() {
    if (myFileChooserDescriptor == null) {
      myFileChooserDescriptor = FileChooserDescriptorFactory.createSingleFolderDescriptor();
      if (myTitle != null) {
        myFileChooserDescriptor.setTitle(myTitle);
      }
      myFileChooserDescriptor.setShowFileSystemRoots(true);
    }
    return myFileChooserDescriptor;
  }
public FileChooserDescriptor getFileChooserDescriptor()