On 14/01/2024 23:54, Simon Nash wrote: > The change for JDK-8321429 breaks the hashCode() method of > sun.nio.ch.FileKey. Well spotted, it means a poor hashCode when doing a lot of file locking on Windows. I've created JDK-8323710 [1] to track it. -Alan [1] https://bugs.openjdk.org/browse/JDK-8323710