Alexis Midon commented on ZOOKEEPER-794:

Yes, with the first patches, the call back ordering might be different from the 
event ordering. And this is one of the ZK core garanties right? Although in our 
case this is happening during the shutdown procedure.

I'll double check the patch.

> Callbacks are not invoked when the client is closed
> ---------------------------------------------------
>                 Key: ZOOKEEPER-794
>                 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-794
>             Project: Zookeeper
>          Issue Type: Bug
>          Components: java client
>    Affects Versions: 3.3.1
>            Reporter: Alexis Midon
>            Assignee: Alexis Midon
>             Fix For: 3.3.2, 3.4.0
>         Attachments: ZOOKEEPER-794.patch.txt, ZOOKEEPER-794.txt, 
> ZOOKEEPER-794_2.patch, ZOOKEEPER-794_3.patch
> I noticed that ZooKeeper has different behaviors when calling synchronous or 
> asynchronous actions on a closed ZooKeeper client.
> Actually a synchronous call will throw a "session expired" exception while an 
> asynchronous call will do nothing. No exception, no callback invocation.
> Actually, even if the EventThread receives the Packet with the session 
> expired err code, the packet is never processed since the thread has been 
> killed by the ventOfDeath. So the call back is not invoked.

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