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https://issues.apache.org/jira/browse/MNG-7592?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17932600#comment-17932600
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Guillaume Nodet commented on MNG-7592:
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[~laeubi] here's a list of of fields which are now intern'ed:
https://github.com/apache/maven/pull/2083/files#diff-a02184e10bbc00b692f818ad6cc385ed0b428c8d83d163917a0729249fc2a5adR2037-R2047
Basically, groupId, artifactId, versions and various enums.
> String deduplication in model building
> --------------------------------------
>
> Key: MNG-7592
> URL: https://issues.apache.org/jira/browse/MNG-7592
> Project: Maven
> Issue Type: Improvement
> Reporter: Christoph Läubrich
> Assignee: Guillaume Nodet
> Priority: Major
> Labels: easytask
> Fix For: 4.0.0-rc-3
>
>
> I currently investigate improving memory consumption in m2eclipse (maven ide
> extension) and noticed that one problem is that maven model seem to not
> deduplicate strings, so for large projects (I used apache camel as an
> example), there are a lot of duplicate strings hanging around, e.g. I see
> 12.000 instances of "org.apache.maven.plugins" or around 10.000 of
> "org.apache.camel" (please note that probably not all related to maven!).
> If I look at the Graph of incoming references I see for example that these
> are from Model/Artifact groupId.
> I know that string deduplication in general is hard and even controversial,
> but maybe one could think about such thing at least for the "hotsposts", e,g,
> groupId, artifactId and version or even managementKeys seem good candidates
> to be considered for such thing as these are used all over the place.
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