private JBZipFile getTasksArchive(String postfix) {
    File file = getArchiveFile(postfix);
    try {
      return new JBZipFile(file);
    }
    catch (IOException e) {
      file.delete();
      JBZipFile zipFile = null;
      try {
        zipFile = new JBZipFile(file);
        Notifications.Bus.notify(new Notification("Tasks", TaskBundle.message("notification.title.context.data.corrupted"),
                                                  TaskBundle.message("notification.content.context.information.history", myProject.getName()), NotificationType.ERROR), myProject);
      }
      catch (IOException e1) {
        LOG.error("Can't repair form context data corruption", e1);
      }
      return zipFile;
    }
  }
private JBZipFile getTasksArchive(String postfix)