Stopping system throws an error about sente-system HOT 3 OPEN

No, I don't know what causes this error, but this occurs only at development time if I'm not mistaken, and I wouldn't worry about it. Interrupted futures have no ill effects on the runtime.

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More to document than anything else, I'm seeing the same issue - a warning to increase the queue-size, coupled with the notification that the FutureTask has been rejected.

I have confirmed that this only happens when Sente is used with System. It's somewhat more pleasant not to have these warnings but as you say it doesn't seem to break anything.

 [clojure-agent-send-off-pool-0] ERROR - increase :queue-size if this happens often                                                                                
java.util.concurrent.RejectedExecutionException: Task java.util.concurrent.FutureTask@3fb8eea3 r
ejected from java.util.concurrent.ThreadPoolExecutor@7865d9df[Terminated, pool size = 0, active 
threads = 0, queued tasks = 0, completed tasks = 155]

As referenced in Sente issue 15.

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This project is way behind in terms of dependencies, and is not going to be maintained further by me. If there are any volunteers to take over, please come forward.
I recommend referring to https://github.com/danielsz/system-websockets for wiring Sente in Clojure projects. No errors on stop, it's maintained, it's more elegant, etc.

Thank you!

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