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