[undertow-dev] Async APIs?

Hi guys, Could you give me a hint if there is a way to write asynchronous handlers? So, I have my own asynchronous runtime (namely ZIO) and I wish undertow's worker thread to do something while it's waiting for request completion after a `dispatch` in my handler. Is there an API allowing me to return a Future or undertow's IOFuture so I may write an adaptor for my primitives?.. changes internal flag. So, from what I can understand I may just set that flag and then complete my request totally asynchronously. Though that method is marked deprecated without an alternative - other versions also wait for a `Runnable`. -- Thanks, Pavel