Call to Future.get() hangs for producer

[Jason Kania]

Hello,
I am using 8.2.1 and getting a scenario where my send works fine but the 
subsequent call to Future.get() does not return - it hangs for at least 5 
minutes. When I kill the client with the producer I get a Connection reset by 
peer message in the server.log. I am not sure what to check to see what is 
happening. None of the other logs are updated when I send. This is on a system 
with no other producers.
Any suggestions on debugging this would be appreciated.
Thanks,
Jason