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https://jira.codehaus.org/browse/WAGON-405?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=334753#comment-334753
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Konrad Windszus commented on WAGON-405:
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Ok, but with the most recent source code I see the following behaviour:
1) Preemptive authentication used always for PUT
(https://github.com/apache/maven-wagon/blob/master/wagon-providers/wagon-http/src/main/java/org/apache/maven/wagon/providers/http/AbstractHttpClientWagon.java#L526)
2) Preemptive authentication only used for GET if explicitly set in the config
(https://github.com/apache/maven-wagon/blob/master/wagon-providers/wagon-http/src/main/java/org/apache/maven/wagon/providers/http/AbstractHttpClientWagon.java#L711).
Never used by default.
To me that doesn't make much sense to me. Please make the configuration in
http://maven.apache.org/guides/mini/guide-http-settings.html#Maven_3.0.4
clearer with regard to what should be the default and also please add an
example how to enable preemptive authentication in
http://maven.apache.org/guides/mini/guide-http-settings.html#Example:_Using_Preemptive_Authentication.
Thanks a lot.
> Preemptive authentication still not working with Maven 3.0.4+
> -------------------------------------------------------------
>
> Key: WAGON-405
> URL: https://jira.codehaus.org/browse/WAGON-405
> Project: Maven Wagon
> Issue Type: Bug
> Reporter: Konrad Windszus
> Attachments: WAGON-405-MVN3.1.1.log
>
>
> Although by default the preemptive authentication should work now with Maven
> 3.0.4, a wireshare dump exposes, that each request for downloading a new
> dependency does not initially come with the authentication header. Only after
> Nexus replied with a 401 the right credentials are set in the authentication
> header. According to [1], since Maven 3.0.4 the default HTTP wagon uses
> preemptive authentication which cannot be disabled [2]. Even with Maven 3.1.1
> it does not work.
> [1] - http://maven.apache.org/guides/mini/guide-http-settings.html#Maven_3.0.4
> [2] -
> http://maven.40175.n5.nabble.com/Maven-3-0-4-preemptive-auth-problem-tt5470892.html#none
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