On Sun, 29 Jun 2025 20:23:53 GMT, Kim Barrett <kbarr...@openjdk.org> wrote:
>> src/java.base/share/classes/java/nio/BufferCleaner.java line 243: >> >>> 241: return; >>> 242: } >>> 243: cleaningThread = new CleaningThread(); >> >> I think double-checked locking could work well here. > > Sure, but why bother? To reduce the thread-safety cost of every `register()` (after the first) down to a volatile read, instead of an `Object.lock()`. But perhaps this isn't that hot a code path - depending on how frequently the app creates (and registers) buffers. ------------- PR Review Comment: https://git.openjdk.org/jdk/pull/25289#discussion_r2176105290
