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From "Sylwester Lachiewicz (JIRA)" <j...@apache.org>
Subject [jira] [Assigned] (MNG-6633) ExcludesArtifactFilter is a memory hog
Date Fri, 17 May 2019 20:46:00 GMT

     [ https://issues.apache.org/jira/browse/MNG-6633?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Sylwester Lachiewicz reassigned MNG-6633:
-----------------------------------------

    Assignee: Sylwester Lachiewicz

> ExcludesArtifactFilter is a memory hog
> --------------------------------------
>
>                 Key: MNG-6633
>                 URL: https://issues.apache.org/jira/browse/MNG-6633
>             Project: Maven
>          Issue Type: Bug
>          Components: core
>    Affects Versions: 3.6.0
>            Reporter: Stefan Oehme
>            Assignee: Sylwester Lachiewicz
>            Priority: Major
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> It takes the group and artifact ID of an Exclusion, concatenates them into a new String,
which is kept in memory for the whole duration of the build and then compares that String
against the concatenation of group and artifact ID of each incoming artifact, adding more
CPU cycles than necessary. Instead it should just take the group and artifact ID from the
Exclusion object and compare them against the group and artifact ID of the Artifact.
>  
> For the 2000 module build I'm currently profiling, this is wasting over 1GB of RAM, with hundreds
of thousands of duplicated Strings.
>  
> See [https://github.com/apache/maven/pull/243]



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