arkDirtyRecursivelyInternal() {
    for (VirtualFileSystemEntry child : getArraySafely(true)) {
      child.markDirtyInternal();
      if (child instanceof VirtualDirectoryImpl) {
        ((VirtualDirectoryImpl)child).markDirtyRecursivelyInternal();
      }
    }
  }

  @Override

arkDirtyRecursivelyInternal() {
    for (Vi