private void checkWritableAttributeChange(List<VFileEvent> events, VirtualFile file, boolean oldWritable, boolean newWritable) {
    if (oldWritable != newWritable) {
      scheduleAttributeChange(events, file, VirtualFile.PROP_WRITABLE, oldWritable, newWritable);
    }
  }
private void checkWritableAttributeChange(List<VFileEvent> events, VirtualFile file, boolean oldWritable, boolean newWritable)