public static void saveFiles(VirtualFile... files) {
    // ensure the validation/conversion runs on the current content
    final FileDocumentManager mgr = FileDocumentManager.getInstance();
    for (VirtualFile f : files) {
      final Document document = mgr.getDocument(f);
      if (document != null) {
        mgr.saveDocument(document);
      }
    }
  }
public static void saveFiles(VirtualFile... files)