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https://issues.apache.org/jira/browse/HTTPCORE-289?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13184416#comment-13184416
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Geir Harald Hansen commented on HTTPCORE-289:
---------------------------------------------
I tried with the latest version from subversion, but still had no luck. So I
write a minimal example to show the problem I'm having.
With the attached Test.java I run it, telnet into it and type "GET / HTTP/1.0"
followed by an empty line. The program now prints "Postponing response..." to
the console. Now if I kill the telnet process nothing happens. After 30 seconds
there is a timeout and the program prints "Cancelled!" to the console.
What I expected was to get "Cancelled!" immediately when I kill the telnet
process, dropping the connection to the program.
> Cancellable#cancel() not invoked when network connection dies
> -------------------------------------------------------------
>
> Key: HTTPCORE-289
> URL: https://issues.apache.org/jira/browse/HTTPCORE-289
> Project: HttpComponents HttpCore
> Issue Type: Bug
> Components: HttpCore NIO
> Affects Versions: 4.2-alpha2
> Reporter: Geir Harald Hansen
> Attachments: Test.java
>
>
> I am rewriting my software to use the new API that comes with 4.2-alpha2.
> Returning a Cancellable from HttpAsyncRequestHandler#handle() seems like a
> good idea for long running requests like long polling. But I don't ever see
> Cancellable#cancel() being called.
> I telnet into my server and type the necessary HTTP to start a long running
> request. A Cancellable is created and returned from handle(). Then I kill the
> telnet process, thereby killing the connection. I expect cancel() to be
> invoked in the connection's Cancellable at this point, but nothing happens.
> cancel() is not invoked in my Cancellable, and there are no calls to
> HttpAsyncServiceHandler#closed(), HttpAsyncServiceHandler#exception() or
> DefaultServerIODispatch#onClosed() either.
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