${project.parent.name} expression returns empty. Add getName() accessor to
org.apache.maven.model.Parent API
------------------------------------------------------------------------------------------------------------
Key: MNG-4130
URL: http://jira.codehaus.org/browse/MNG-4130
Project: Maven 2
Issue Type: Bug
Components: POM
Affects Versions: 2.1.0
Reporter: Chris Beams
Priority: Minor
h3. Setup
{code:title=parent pom}
<project xmlns="http://maven.apache.org/POM/4.0.0";
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0
http://maven.apache.org/maven-v4_0_0.xsd";>
<modelVersion>4.0.0</modelVersion>
<groupId>com.myco</groupId>
<artifactId>foo-parent</artifactId>
<version>1.0.0-SNAPSHOT</version>
<packaging>pom</packaging>
<name>Foo</name>
</project>
{code}
{code:title=child pom}
<project xmlns="http://maven.apache.org/POM/4.0.0";
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0
http://maven.apache.org/maven-v4_0_0.xsd";>
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>com.myco</groupId>
<artifactId>foo</artifactId>
<version>1.0.0-SNAPSHOT</version>
</parent>
<artifactId>foo-child</artifactId>
<name>${project.parent.name}: Child</name>
</project>
{code}
h3. Expected results
{noformat}
cbe...@kaizen:~/Work/project/child>$ mvn clean
[INFO] Scanning for projects...
[INFO]
----------------------------------------------------------------------------
[INFO] Building Foo: Child
[INFO] task-segment: [clean]
[INFO]
----------------------------------------------------------------------------
[INFO] [clean:clean]
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESSFUL
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 1 second
[INFO] Finished at: Fri Apr 10 09:29:47 PDT 2009
[INFO] Final Memory: 6M/16M
[INFO] ------------------------------------------------------------------------
{noformat}
Note that this expected behavior is no different than the way that
{{${project.parent.artifactId}}} works today. The absence of a {{name}}
property is a gap in that expected support.
h3. Actual results
{noformat}
cbe...@kaizen:~/Work/project/child>$ mvn clean
[INFO] Scanning for projects...
[INFO]
----------------------------------------------------------------------------
[INFO] Building ${project.parent.name}: Child
[INFO] task-segment: [clean]
[INFO]
----------------------------------------------------------------------------
[INFO] [clean:clean]
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESSFUL
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 1 second
[INFO] Finished at: Fri Apr 10 09:29:47 PDT 2009
[INFO] Final Memory: 6M/16M
[INFO] ------------------------------------------------------------------------
{noformat}
h3. Assumed cause
{{[org.apache.maven.model.Parent|http://maven.apache.org/ref/current/maven-model/apidocs/org/apache/maven/model/Parent.html]}}
does not expose a {{getName()}}/{{setName()}} pair of property accessors.
h3. Proposed fix
Add {{setName()}}/{{getName()}} to the {{Parent}} API, and ensure that they are
populated during the build/reactor lifecycle such that child poms can have
access to them.
Thanks.
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