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https://jira.codehaus.org/browse/MWAR-260?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=279047#comment-279047
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Alex Clarke commented on MWAR-260:
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Hi Joerg,
Could you clarify what you mean by this? Are you saying that your overlay is
set with a packaging type of jar and an additional webapp artifiact is attached
that contains the web content? How does the war that wants to use the overlay
specify dependencies? Does it need to declare two dependencies for each
overlay, one for the jar and one for the webapp type?
Is there any documentation or are there examples somewhere of this?
Thanks,
Alex
> Patch to provide new war-overlay type
> -------------------------------------
>
> Key: MWAR-260
> URL: https://jira.codehaus.org/browse/MWAR-260
> Project: Maven 2.x WAR Plugin
> Issue Type: Improvement
> Components: overlay
> Affects Versions: 2.1.1
> Reporter: Alex Clarke
>
> There are a number of bugs raised around support for WAR overlays:
> MWAR-73 - war overlay mechanism does not work for classes
> MWAR-253 - Inherit dependencies from a WAR type dependency when it is
> overlayed.
> MWAR-194 - Warn when inconsistent jar versions are detected during overlay
> MWAR-220 - dependencyManagement && overlay + transitive dependency = multiple
> versions of same dependency in WEB-INF/lib
> MWAR-33 - jars with differents versions can be in WEB-INF/lib with war as
> dependencies
> Most of these relate to the fact that overlays are not treated as normal
> maven dependencies.
> The code in https://github.com/SciSysUK/maven-plugins/tree/waroverlay
> introduces a new packaging type of "war-overlay", that works in the following
> way:
> - The primary artifact is a jar containing the classes from the overlay
> - Another artifact is attached containing the web content
> - A dependency on a war-overlay will automatically pull both artifacts
> into the packaged war
> To use the new type all you need to do is declare
> <extensions>true</extensions> on the maven-war-plugin. There is an
> integration test example here:
> https://github.com/SciSysUK/maven-plugins/tree/waroverlay/maven-war-plugin/src/it/war-overlay.
>
> If someone could review the code I could create a patch and update the site
> documentation.
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