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https://issues.apache.org/jira/browse/SOLR-3204?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13224663#comment-13224663
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Michael McCandless commented on SOLR-3204:
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bq. The commons-csv problem is a non issue if we were using a released version.
Wait, are you talking about the Maven issue ("my private deps become publicly
released to Maven"), or the more general JAR hell problem?
For JAR hell, I thought even released versions can cause problems too?
Ie, we include version X of a dep, and the app embedding solr is using version
Y, and they may conflict?
Ie the classic problem: http://en.wikipedia.org/wiki/Java_Classloader#JAR_hell
> solr-commons-csv must not use the org.apache.commons.csv package
> ----------------------------------------------------------------
>
> Key: SOLR-3204
> URL: https://issues.apache.org/jira/browse/SOLR-3204
> Project: Solr
> Issue Type: Bug
> Components: Build
> Affects Versions: 3.5
> Reporter: Emmanuel Bourg
> Priority: Blocker
> Fix For: 3.6
>
> Attachments: SOLR-3204.patch, SOLR-3204.patch, SOLR-3204.patch,
> apache-solr-commons-csv-1.0-SNAPSHOT-r966014.jar, rule.txt, rule.txt,
> solr-csv.patch
>
>
> The solr-commons-csv artifact reused the code from the Apache Commons CSV
> project but the package wasn't changed to something else than
> org.apache.commons.csv in the process. This creates a compatibility issue as
> the Apache Commons team works toward an official release of Commons CSV. It
> prevents Commons CSV from using its own org.apache.commons.csv package, or
> forces the renaming of all the classes to avoid a classpath conflict.
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