On Wed, 14 Apr 2021 17:36:21 GMT, Alexey Semenyuk <asemen...@openjdk.org> wrote:
> postVisitDirectory() and visitFile() methods can be potentially called > concurrently by walkFileTree() I don't think they can. > Javadoc ... doesn't say anything about synchronization, so I think it is fair > to assume it is not guaranteed. Given that the `Files` class says nothing about running its various file walking operations in parallel, I think you can be confident that the visitor methods are only ever run on the same thread that calls walkFileTree. I would consider it a bug if the thread used to callback into the visitor were different from the calling thread. Still, I think using `AtomicReference` is fine here, so this is a moot point for this PR. ------------- PR: https://git.openjdk.java.net/jdk/pull/3473
