[regression] User properties override equally named POM properties of
transitive dependencies
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Key: MNG-4913
URL: http://jira.codehaus.org/browse/MNG-4913
Project: Maven 2 & 3
Issue Type: Bug
Components: Artifacts and Repositories
Affects Versions: 3.0
Reporter: Benjamin Bentmann
While trying to run the core ITs using {{-DmavenVersion=3.0.1}} the build ended
up with a resolution failures for a bunch of non-existing artifacts like
{{maven-reporting-api:3.0.1}}. The problematic artifact versions were coming
from a wrong dependency tree like this:
{noformat}
DEBUG] org.apache.maven.plugins:maven-resources-plugin:jar:2.3:
DEBUG] org.apache.maven:maven-plugin-api:jar:2.0.6:compile
DEBUG] org.apache.maven:maven-project:jar:2.0.6:compile
DEBUG] org.apache.maven:maven-settings:jar:3.0.1:compile
DEBUG] org.apache.maven:maven-profile:jar:3.0.1:compile
DEBUG] org.apache.maven:maven-model:jar:3.0.1:compile
DEBUG] org.apache.maven:maven-artifact-manager:jar:3.0.1:compile
DEBUG] org.apache.maven:maven-plugin-registry:jar:3.0.1:compile
DEBUG] org.apache.maven:maven-artifact:jar:3.0.1:compile
{noformat}
Note that the dependencies of {{maven-project:2.0.6}} use the wrong version.
The problem is due to {{maven:pom:2.0.6}} using the POM property
{{mavenVersion}} which erroneously gets overridden by my user property.
During dependency resolution, user properties must be treated like system
properties and must not override POM properties.
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