Major Description
When in a high throughput scenario a TCP connection is closed remotely before one of the `await` methods on WriteFuture is invoked, the `await` method hangs.
We've actually been seeing this issue for quite some time in our production environment in an application that uses Apache Camel with the camel-mina2 and camel-hl7 components. I was finally able to reproduce the issue in a unit test (see attached).