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From "Jon Moore (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HTTPCLIENT-1157) MemcachedHttpCacheStorage should throw IOExceptions instead of Runtime Exceptions
Date Tue, 10 Jan 2012 19:08:39 GMT

    [ https://issues.apache.org/jira/browse/HTTPCLIENT-1157?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13183481#comment-13183481
] 

Jon Moore commented on HTTPCLIENT-1157:
---------------------------------------

@James: yes, I think just putting the try...catch around the Memcached operations would be
overall simpler. If you can update the patch I'd be happy to apply it.
                
> MemcachedHttpCacheStorage should throw IOExceptions instead of Runtime Exceptions
> ---------------------------------------------------------------------------------
>
>                 Key: HTTPCLIENT-1157
>                 URL: https://issues.apache.org/jira/browse/HTTPCLIENT-1157
>             Project: HttpComponents HttpClient
>          Issue Type: Bug
>          Components: Cache
>    Affects Versions: 4.2 Alpha1
>            Reporter: James Miller
>            Assignee: Jon Moore
>              Labels: cache
>             Fix For: 4.1.3, 4.2 Alpha2
>
>         Attachments: HTTPCLIENT-1157.patch
>
>
> The MemcachedHttpCacheStorage class implements HttpCacheStorage which defines that methods
will throw IOExceptions, but the underlying net.spy.memcached.MemcachedClientIF throws runtime
exceptions. These exceptions are not caught in the code where IOExceptions are expected causing
these exception bubble up to the calling code. It seems like the MemcachedHttpCacheStorage
class should treat at least some of these runtime exceptions as IOExceptions so that normal
code execution paths can be followed.  
> I'm proposing that MemcachedHttpCacheStorage treat a OperationTimeoutException from the
memcached client as an IOException. This would allow the existing CachingHttpClient code to
catch and log the exception as a warning, instead of bubbling the exception up the calling
code.

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