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From "Aled Sage (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (BROOKLYN-223) The dist contains duplicate classes in different jars
Date Mon, 14 Mar 2016 14:49:33 GMT

    [ https://issues.apache.org/jira/browse/BROOKLYN-223?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15193390#comment-15193390
] 

Aled Sage commented on BROOKLYN-223:
------------------------------------

Perhaps we should use this to detect duplicate classes, and fail the build if there are any?!
https://github.com/basepom/duplicate-finder-maven-plugin

But first step is to fix the duplicates we do have.

> The dist contains duplicate classes in different jars
> -----------------------------------------------------
>
>                 Key: BROOKLYN-223
>                 URL: https://issues.apache.org/jira/browse/BROOKLYN-223
>             Project: Brooklyn
>          Issue Type: Bug
>            Reporter: Svetoslav Neykov
>
> Various jars in the dist contain conflicting class implementations. 
> Need to check and confirm whether duplicate classes are expected or address possible
conflicts.
> Sample duplicates:
>   * org.xmlpull.v1.XmlPullParserException
>   * org.objectweb.asm.signature.SignatureWriter
>   * io.swagger.util.Yaml
>   * com.jcraft.jsch.agentproxy.USocketFactory
> For example asm jars with different groupIds are included. Aspectj is included with two
jars one of which is subset of the other (aspectjrt-1.7.4.jar and aspectjweaver-1.7.4.jar).
Swagger is bundled in our brooklyn-utils-rest-swagger project jar, but still included as a
separate dependency.
> Reproducing:
>   * get all (potentially) conflicting classes: {{find . -name "*.jar" | xargs -n1 unzip
-Z -1 | grep "\.class$"  | sort | uniq -c | sort -nr | awk '$1 > 1'}}
>   * list jars including specific class: {{for i in `find . -name '*.jar'`; do if unzip
-Z -1 $i | grep -q '^org/xmlpull/v1/XmlPullParserException.class'; then echo $i; fi; done}}



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