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Posted to issues@maven.apache.org by "Stefan Oehme (JIRA)" <ji...@apache.org> on 2019/04/11 09:15:00 UTC

[jira] [Created] (MNG-6632) ArtifactHandlerManager.getArtifactHandler is inefficient

Stefan Oehme created MNG-6632:
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             Summary: ArtifactHandlerManager.getArtifactHandler is inefficient
                 Key: MNG-6632
                 URL: https://issues.apache.org/jira/browse/MNG-6632
             Project: Maven
          Issue Type: Bug
          Components: core
    Affects Versions: 3.6.0
            Reporter: Stefan Oehme


I'm currently optimizing a very large (2000+ submodule) project. ArtifactHandlerManager.getArtifactHandler is one of the CPU/memory hotspots, because for every `get` call it goes through the Map injected by Plexus. This Map has O(n) lookup performance, because it is backed by an `Iterable`. It would be much faster to remember the artifact handlers that have already been found.

See [https://github.com/apache/maven/pull/242]
 



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