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https://issues.apache.org/jira/browse/MNG-8007?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tamas Cservenak closed MNG-8007.
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Resolution: Fixed
> Make Maven transfer listener used with Resolver more concurrent friendly
> ------------------------------------------------------------------------
>
> Key: MNG-8007
> URL: https://issues.apache.org/jira/browse/MNG-8007
> Project: Maven
> Issue Type: Improvement
> Components: Artifacts and Repositories
> Reporter: Tamas Cservenak
> Assignee: Tamas Cservenak
> Priority: Major
> Fix For: 4.0.0, 4.0.0-alpha-11
>
>
> Current console transfer listener used in Maven has all method
> {{synchronized}}. This becomes a problem as resolver is more and more
> parallelized, and threads from it sending events are getting in race
> condition for maven listener monitor.
> One possibility would be to implement a "demuxer" listener, that wraps
> another listener: it receives even from multiple threads events, returns
> fast, but passes the incoming events on single thread to wrapped listener.
> This makes resolver relieve a bit, but also keeps actual listener simple, as
> it can be coded single threaded.
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