Potential lost write IO notifications in Windows when using virtual threads

[Alan Bateman]

On 11/02/2026 18:12, robert engels wrote:
> It looks like the EPoll bug on windows is widely reported, but there 
> also is a fair amount of critique of epoll in general. This article 
> goes into depth on triggering events and various issues. My 
> understanding though is that windows doesn’t even have a true epoll, 
> on a layer over the native kernel event system.

The JDK does not share epfds across threads or use edge-triggered mode.

This discussion is about a shim over the AFD for winsock that exposes an 
epoll-like interface so not the same as the Linux epoll facility.

-Alan