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https://issues.apache.org/jira/browse/MRESOLVER-126?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17142732#comment-17142732
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Konrad Windszus commented on MRESOLVER-126:
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As the Wagon transporter does not evaluate {{aether.connector.http.headers}}
this makes the property useless for Maven itself. Also the Http Transporter
(https://github.com/apache/maven-resolver/blob/47edcfe69c4e52ced4cb93d65b7348b5645cdd68/maven-resolver-transport-http/src/main/java/org/eclipse/aether/transport/http/HttpTransporterFactory.java#L39)
is still preferred over the Wagon Transporter
(https://github.com/apache/maven-resolver/blob/09925f72f00008d641e99addd5be187d0adb04b4/maven-resolver-transport-wagon/src/main/java/org/eclipse/aether/transport/wagon/WagonTransporterFactory.java#L47)
> Support property type conversion from String into Map
> -----------------------------------------------------
>
> Key: MRESOLVER-126
> URL: https://issues.apache.org/jira/browse/MRESOLVER-126
> Project: Maven Resolver
> Issue Type: Improvement
> Reporter: Konrad Windszus
> Priority: Major
>
> The property {{aether.connector.http.headers}} requires a
> {{Map<String,String>}} as value
> (https://github.com/apache/maven-resolver/blob/47edcfe69c4e52ced4cb93d65b7348b5645cdd68/maven-resolver-transport-http/src/main/java/org/eclipse/aether/transport/http/HttpTransporter.java#L139).
> As in
> https://github.com/apache/maven-resolver/blob/47edcfe69c4e52ced4cb93d65b7348b5645cdd68/maven-resolver-util/src/main/java/org/eclipse/aether/util/ConfigUtils.java#L362
> there is no type conversion, it is currently impossible to configure this
> from Apache Maven (as Maven is using system properties).
> {{List}} suffers from the same issue but is currently not used
> (https://github.com/apache/maven-resolver/blob/47edcfe69c4e52ced4cb93d65b7348b5645cdd68/maven-resolver-util/src/main/java/org/eclipse/aether/util/ConfigUtils.java#L319)
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