[MNG-5415] Duplicate dependency with property causes the build to fail

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Won't Fix
• Affects Version/s: 3.0.3, 3.0.4
• Component/s: Plugins and Lifecycle
• Labels: close-pending

Environment

$ mvn -version
Apache Maven 3.0.3 (r1075438; 2011-02-28 18:31:09+0100)
Maven home: /usr/share/maven
Java version: 1.7.0_09, vendor: Oracle Corporation
Java home: /Library/Java/JavaVirtualMachines/jdk1.7.0_09.jdk/Contents/Home/jre
Default locale: en_US, platform encoding: UTF-8
OS name: "mac os x", version: "10.8.2", arch: "x86_64", family: "mac"

• Assignee: Unassigned
• Reporter: Tarje Killingberg
• Created: 20/Dec/12 06:12
• Updated: 23/Dec/19 11:46
• Resolved: 23/Dec/19 11:46

Description

The following excerpt from a pom.xml file causes just about any maven command (e.g. mvn package) to fail with the error 'dependencies.dependency.version' for junit:junit:jar is missing:

<properties>
    <my.type>jar</my.type>
    <my.other.type>jar</my.other.type>
</properties>

<dependencyManagement>
    <dependencies>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.10</version>
            <type>${my.type}</type>
        </dependency>
        <dependency>
            <artifactId>junit</artifactId>
            <groupId>junit</groupId>
            <version>4.10</version>
            <type>${my.other.type}</type>
        </dependency>
    </dependencies>
</dependencyManagement>

<dependencies>
    <dependency>
        <artifactId>junit</artifactId>
        <groupId>junit</groupId>
        <type>${my.type}</type>
    </dependency>
    <dependency>
        <artifactId>junit</artifactId>
        <groupId>junit</groupId>
        <type>${my.other.type}</type>
        <optional>true</optional>
    </dependency>
</dependencies>

If the string jar is used instead of the properties, the build succeeds with warnings.

A SSCCE is attached. Running the command mvn validate inside the my-app-folder should show the symptom.