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http://jira.codehaus.org/browse/MNG-2717?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jason van Zyl closed MNG-2717.
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Resolution: Fixed
> Cache the repo dependencies
> ---------------------------
>
> Key: MNG-2717
> URL: http://jira.codehaus.org/browse/MNG-2717
> Project: Maven 2 & 3
> Issue Type: Improvement
> Components: Artifacts and Repositories
> Affects Versions: 2.0.4
> Reporter: Nigel Magnay
> Priority: Minor
> Fix For: 3.x
>
>
> Once projects get of a significant size, there can be a large number of
> dependencies, and transitive dependencies thereof.
> In our WAR projects (for example), this can approach a few hundred
> dependencies (though there are a fair number of duplicates).
> Looking at JProfiler (after examinining one of my own non-maven tools that
> also parses POM files), the parsing cycle of reading all these POM files from
> the local repo, and pull-parsing them for dependencies takes a significant
> proportion of the execute time (4 of the top 10 hotspots are in MXParser.
> Since non-snapshot dependencies ought never to change their dependencies [1],
> and dependency download could trigger the fact that the dependencies might
> have changed anyway, some kind of caching mechanism could be used to speed
> this up (something like {artifact, scope} -> List{artifact}).
> [1] I have reserved a particular space in hell for those people who *do*
> change the deps on released POMs... ;-S
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