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From "Sebb (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HTTPCLIENT-1294) CircularRedirectException is falsely thrown on URI case mismatch
Date Tue, 16 Apr 2013 18:57:17 GMT

    [ https://issues.apache.org/jira/browse/HTTPCLIENT-1294?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13633186#comment-13633186
] 

Sebb commented on HTTPCLIENT-1294:
----------------------------------

I just tried with the current JMeter trunk (uses HC 4.2.4) and that worked fine (it further
redirects abcdigmusic.net.au).

I'm pretty sure JMeter doesn't allow circular redirects nor provide its own redirect handler.
                
> CircularRedirectException is falsely thrown on URI case mismatch
> ----------------------------------------------------------------
>
>                 Key: HTTPCLIENT-1294
>                 URL: https://issues.apache.org/jira/browse/HTTPCLIENT-1294
>             Project: HttpComponents HttpClient
>          Issue Type: Bug
>          Components: HttpClient
>    Affects Versions: 4.1.3, 4.2.2
>            Reporter: Michiel Proce
>             Fix For: 4.3 Beta2
>
>
> Some servers (including IIS6) redirect wrong-cased request URIs to lower case:
> http://EXAMPLE.com/ -> http://example.com/
> Now when I'm redirected from another URI to an uppercase URI, the following redirects
happen:
> http://referrer.com/ -> http://EXAMPLE.com/ -> http://example.com/
> When running this request with HttpClient (with default ALLOW_CIRCULAR_REDIRECTS: false),
I get a org.apache.http.client.CircularRedirectException, even though a circular redirect
won't occur.
> The problem lies in java.net.URI, the following URIs are considered equal:
> URI a = new URI("http://example.com");
> URI b = new URI("http://EXAMPLE.com");
> // a.equals(b): true
> // a.hashCode() == b.hashCode(): true
> The redirect locations are stored in a HashSet<URI> in org.apache.http.impl.client.RedirectLocations.
A CircularRedirectException is thrown when an URI is already in this hashset.
> I have no real suggestions on how to fix this, because I am not known with the coding
style for HttpClient..

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