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http://jira.codehaus.org/browse/MNG-3606?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=136803#action_136803
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Brian Fox commented on MNG-3606:
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That's right, we opted for deterministic over possible regressions. We simply
couldn't leave it as it was causing incompatibilities across platforms and jdks
within the same maven release. It has only showed up in a very few cases, but
we want to look closer at this one to be sure it's really the problem. If it is
the ordering issue, we'll be able to suggest how to reorder your pom so the
behavior is the same.
> Dependency Resolution Handling Conflicts with 2.0.8
> ---------------------------------------------------
>
> Key: MNG-3606
> URL: http://jira.codehaus.org/browse/MNG-3606
> Project: Maven 2
> Issue Type: Bug
> Components: Dependencies
> Affects Versions: 2.0.9
> Environment: # mvn -version
> Maven version: 2.0.9
> Java version: 1.5.0_14
> OS name: "linux" version: "2.6.18-53.1.4.el5" arch: "i386" Family: "unix"
> # java -version
> java version "1.5.0_14"
> Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_14-b03)
> Java HotSpot(TM) Client VM (build 1.5.0_14-b03, mixed mode, sharing)
> Reporter: Andrew Lee Rubinger
> Assignee: John Casey
> Fix For: 2.0.10
>
> Attachments: #maven-chat.txt, maven_2.0.8_ejb3core.txt,
> maven_2.0.9_ejb3core.txt
>
>
> The JBoss EJB3 Build has revealed dependency resolution differences between
> Maven 2.0.8 and 2.0.9.
> In 2.0.8:
> $> /opt/apache/maven/apache-maven-2.0.8/bin/mvn dependency:tree
> -Dincludes=org.jboss.microcontainer:jboss-container
> [INFO] [dependency:tree]
> [INFO] org.jboss.ejb3:jboss-ejb3-core:jar:0.1.2-SNAPSHOT
> [INFO] \- org.jboss.jbossas:jboss-as-system-jmx:jar:5.0.0.Beta4:provided
> [INFO] \- org.jboss.jbossas:jboss-as-jmx:jar:5.0.0.Beta4:provided
> [INFO] \- org.jboss.microcontainer:jboss-container:jar:2.0.0.Beta10:provided
> (version managed from 2.0.0.Beta6)
> $> /opt/apache/maven/apache-maven-2.0.8/bin/mvn -Dplugin=dependency
> help:describe
> Group Id: org.apache.maven.plugins
> Artifact Id: maven-dependency-plugin
> Version: 2.0
> Goal Prefix: dependency
> In 2.0.9:
> $> /opt/apache/maven/apache-maven-2.0.9/bin/mvn dependency:tree
> -Dincludes=org.jboss.microcontainer:jboss-container
> {nothing}
> $> /opt/apache/maven/apache-maven-2.0.9/bin/mvn -Dplugin=dependency
> help:describe
> Group Id: org.apache.maven.plugins
> Artifact Id: maven-dependency-plugin
> Version: 2.0
> Goal Prefix: dependency
> These were run on the same machine from the same source tree. As is shown
> above, "org.jboss.microcontainer:jboss-container" is not a dependency when
> using 2.0.9.
> Attached are the full outputs from the command "mvn -X dependency:resolve"
> for each Maven release.
> This may be duplicated by running the JBoss EJB3 Build:
> $> svn co https://svn.jboss.org/repos/jbossas/projects/ejb3/trunk
> $> cd trunk
> $> mvn clean install
> The above must be done with the JBoss Repositories, typically this is done by
> making a a JBoss Profile in settings.xml as described by
> http://wiki.jboss.org/auth/wiki/MavenSettings
> The concerning issue here is not whether this build passes or does not, but
> the fact that the build itself is proven to not be reproducible between 2.0.8
> and 2.0.9, a point release. This either breaks backwards compatibility or is
> technically a bug fix, but either way makes a prime target for developer
> confusion.
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