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http://jira.codehaus.org/browse/MECLIPSE-230?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_103201
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Max Bowsher commented on MECLIPSE-230:
--------------------------------------

I do not know about J2ME, but for J2SE development, exporting seems to be 
unnecessary, and potentially even harmful:

If you have a group of interdependent projects, configured with the 
maven-eclipse-plugin, Maven will already have resolved the complete set of 
required dependencies and added them to each project's classpath - no exports 
needed. The potential for harm is: Maven may have resolved different versions 
of various dependencies in each project. Exports will thus result in multiple 
versions of the same jar being present on the classpath. 

> Classpath entries to be marked exported
> ---------------------------------------
>
>                 Key: MECLIPSE-230
>                 URL: http://jira.codehaus.org/browse/MECLIPSE-230
>             Project: Maven 2.x Eclipse Plugin
>          Issue Type: Improvement
>          Components: dependency resolution
>    Affects Versions: 2.1
>            Reporter: Vlad Skarzhevskyy
>            Assignee: fabrizio giustina
>             Fix For: 2.5
>
>
> Generated .classpath entries of kind "var" need to be marked exported by 
> default so that referenced projects have visibility to them.  Or provide an 
> option to specifiy that that entries should be exported.
> Example: <classpathentry kind="var" 
> path="M2_REPO/mx4j/mx4j/3.0.1/mx4j-3.0.1.jar"/>
> should me made...
> <classpathentry exported="true" kind="var" 
> path="M2_REPO/mx4j/mx4j/3.0.1/mx4j-3.0.1.jar"/>

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