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https://issues.apache.org/jira/browse/CXF-7720?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16445660#comment-16445660
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Vladimir Bogatyrov commented on CXF-7720:
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Normally, HttpURLConnection object from which the headers are read at
https://github.com/apache/cxf/blob/master/rt/transports/http/src/main/java/org/apache/cxf/transport/http/Headers.java#L292
contains one map entry for all the header values.
When the issue is reproduced however, HttpURLConnection object contains a
separate entry for each of the headers with the similar name but with different
cases, which leads to the situation when only one header value gets into
headers map and all the other values are lost.
> Header values are lost
> -----------------------
>
> Key: CXF-7720
> URL: https://issues.apache.org/jira/browse/CXF-7720
> Project: CXF
> Issue Type: Bug
> Components: Transports
> Affects Versions: 3.2.4
> Environment: Windows 7
> Java 1.8.0_152
> SoapUI 5.2.1
> Reporter: Vladimir Bogatyrov
> Priority: Major
> Attachments: consumer.zip, rest_mock_provider_soapui_project.xml
>
>
> When a request is made by WebClient to a service that returns several headers
> of the same name but with different cases, e.g.:
> "Set-Cookie" with value "aaa"
> "set-cookie" with value "bbb"
> "SET-COOKIE" with value "ccc"
> then the response object contains only one header value, all other values are
> lost.
> The issue is not reproducible in all cases, but only with some service
> providers and is probably caused by low-level details of provider
> implementation.
>
> In the attachment there is a SoapUI REST mock service and CXF WebClient-based
> consumer with which the issue is reproducible.
>
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