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From "Oleg Kalnichevski (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HTTPCORE-345) Resource leak in EntityAsyncContentProducer when produceContent is never called
Date Wed, 03 Jul 2013 17:06:29 GMT

    [ https://issues.apache.org/jira/browse/HTTPCORE-345?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13699179#comment-13699179
] 

Oleg Kalnichevski commented on HTTPCORE-345:
--------------------------------------------

Tad,
It should generally be OK to call #close() method multiple times. At least it is clearly stated
so in the interface description of Closeable interface. 

Oleg
                
> Resource leak in EntityAsyncContentProducer when produceContent is never called
> -------------------------------------------------------------------------------
>
>                 Key: HTTPCORE-345
>                 URL: https://issues.apache.org/jira/browse/HTTPCORE-345
>             Project: HttpComponents HttpCore
>          Issue Type: Bug
>          Components: HttpCore, HttpCore NIO
>    Affects Versions: 4.2.4
>         Environment: Tested on Sun JDK 6 Linux 64 & Win 32
>            Reporter: Tad Whitenight
>             Fix For: 4.2.5, 4.3-beta3
>
>         Attachments: EntityAsyncContentProducer.diff, TestHttpAsyncPrematureTermination.diff
>
>
> The HttpAsyncContentProducer javadoc does not mention that the produceContent method
must be called.
> However, the close() method of EntityAsyncContentProducer assumes that the produceContent
method was previously called.
> Quickly cancelled requests made to an HttpAsyncService can realize this scenario and
thus leak resources backing response entities.
> I discovered this issue in 4.2.4, but am currently reproducing the issue with trunk.
> I'll attach a simplified test case shortly.
> A possible fix is to check if the channel was never created and close the underlying
entity in this case.

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