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From "Donatas Ciuksys (JIRA)" <>
Subject [jira] Commented: (MASSEMBLY-211) assembly plugin and jar plugin disagree about whether to use uniqueVersion snapshot names
Date Thu, 01 Dec 2011 10:25:40 GMT


Donatas Ciuksys commented on MASSEMBLY-211:

Hellmut, please comment and vote for MASSEMBLY-584, since it seems to be exactly the same
case you have described (or very similar).


> assembly plugin and jar plugin disagree about whether to use uniqueVersion snapshot names
> -----------------------------------------------------------------------------------------
>                 Key: MASSEMBLY-211
>                 URL:
>             Project: Maven 2.x Assembly Plugin
>          Issue Type: Bug
>    Affects Versions: 2.2-beta-1
>            Reporter: Max Bowsher
>            Assignee: John Casey
>            Priority: Blocker
>             Fix For: 2.2-beta-3
>         Attachments: CSMDirectoryListingOfJars.txt, CSMJarManifest.txt
> Background: Consider the following setup:
> jar-plugin configured with addClasspath=true, writing list of dependency jar file names
into manifest of project jar.
> assembly-plugin configured with a dependencySet pulling all dependencies into a single
> Result: application is runnable with with "java -jar mainartifact.jar" 
> There has long been a problem (i.e. with assembly-plugin 2.1) that when deployed snapshot
jars were in use, the jar and assembly plugins would disagree in whether the uniqueVersion
name was used, and this is MNG-2456. 
> However, assembly-plugin 2.2-beta-1 has introduced further complications to the situation
by not using the lifecycle's default set of resolved artifacts, but by running a manual resolution
of its own. This has made the two plugins disagree in more scenarios than before, and broke
the workaround patch that I posted in MNG-2456. 
> At the root of these problems is some very peculiar handling of the 'file', 'baseVersion'
and 'version' fields of Artifact objects, two notable instances of which are the DefaultArtifact.isSnapshot
method, which despite being an accessor, actually changes the state of the object, and the
DefaultArtifactResolver.resolve method, which contains some rather bizarre manipulation of
the 'file' field (more detail may comments in MNG-2456). 
> An interim fix to this issue might involve workarounds in both the jar and assembly plugins
to get them to agree. A true fix probably also involves fixing Maven core classes.

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