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From "Steffi Tinder (JIRA)" <>
Subject [jira] Commented: (MRELEASE-634) Versions of snapshot dependencies to the same artifact with different classifiers are not updated correctly during release:prepare
Date Wed, 19 Jan 2011 12:57:58 GMT


Steffi Tinder commented on MRELEASE-634:

Additional information to the patch I have attached (continue-after-rewriting.patch): It solves
the issue for us. I have no idea if there are side-effects, that need to be considered for
an elegant solution. In fact, the patch only fixes part two of the problem mentioned in my
initial comment, but this is enough in our scenario. Part one only is a problem if the dependencies
need to be set to different versions or if anyone is annoyed by being asked to enter release
and development versions for the same dependency multiple times.

> Versions of snapshot dependencies to the same artifact with different classifiers are
not updated correctly during release:prepare 
> -----------------------------------------------------------------------------------------------------------------------------------
>                 Key: MRELEASE-634
>                 URL:
>             Project: Maven 2.x Release Plugin
>          Issue Type: Bug
>          Components: prepare
>    Affects Versions: 2.1
>            Reporter: Steffi Tinder
>         Attachments: continue-after-rewriting.patch
> If you have several dependencies to the same artifact with different classifiers, the
versions are not correctly updated by the release-plugin.
> Consider the following scenario:
> You have the following two dependencies in your pom:  
> {code:xml} 
> <dependency>
> 	<groupId>groupid</groupId>
> 	<artifactId>artifactid/artifactId>
> 	<version>1.0-SNAPSHOT</version>
> </dependency>
> <dependency>
> 	<groupId>groupid</groupId>
> 	<artifactId>artifactid/artifactId>
>         <scope>test</scope>
> 	<classifier>tests</classifier>
> 	<version>1.0-SNAPSHOT</version>
> </dependency>
> {code} 
> During release:prepare, the plugin will ask you to enter release and dev version for
groupid:artifact twice, but it will discard the information you entered the first time. 
> This happens because the ReleaseManager uses a "versionlessKey" to store the resolved
snapshot dependencies.
> {code:title=org.apache.maven.shared.release.phase.CheckDependencySnapshotsPhase}
> private Map processSnapshot( Set snapshotSet )
>         throws PrompterException, VersionParseException
> {
>     ...
>     resolvedSnapshots.put( versionlessKey, versionMap );
>     ...
> }
> {code} 
> When the version tags in the pom are updated with the new versions, only one of the dependencies
will be updated. Again, the release-plugin will only use groupid and artifactid to identify
the dependency. 
> It also checks if the dependency was already updated and so the second dependency-element
is ignored:
> {code:title=org.apache.maven.shared.release.phase.CheckDependencySnapshotsPhase}
> private void rewriteDependencies( List dependencies, Element dependencyRoot, Map mappedVersions,
>                                       Map resolvedSnapshotDependencies, Map originalVersions,
String projectId,
>                                       Element properties, ReleaseResult result, ReleaseDescriptor
releaseDescriptor )
>         throws ReleaseExecutionException, ReleaseFailureException
> {
>     ...
>     if ( !dependenciesAlreadyChanged.contains( depId ) )
>     {
>         //This check is required because updateDomVersion update all dependencies with
the current groupId/artifactId
>         //(standard dependencies and sub-dependencies like ejb-client) so we don't need
to re-update them
>         ...
>     }
> }
> {code} 
> *Summary:*
> The problem consists of two parts:
> 1. the version information entered for the second dependency is discarded (that means
you couldn't specify different versions for the two dependencies)
> 2. only on of the dependency elements is updated during the release
> The result is a remaining SNAPSHOT-dependency in the released artifacts. 

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