[MNG-6752] submodule with $revision version can't be referenced by a normal version number

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 3.6.1
• Component/s: Dependencies
• Assignee: Unassigned
• Reporter: Martin K
• Created: 29/Aug/19 15:27
• Updated: 07/Jan/22 20:18

Description

In the following example, pp/pom.xml can't reference its parent with a specific version number ("<version>1-SNAPSHOT</version>") - Unless pp1:pp-pom:pom:1-SNAPSHOT is already present in a maven repository, the build will fail.

Maven reads the parent poms and caches them, before resolving $revision. Therefore it just caches the artifact version "${revsion}" and fails to load the local parent pom, if the parent reference does not also use the version "${revision}"

Precondition: Non of these artificats is already present in a local or remote maven repository.

File pom.xml:

<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/xsd/maven-4.0.0.xsd">

<modelVersion>4.0.0</modelVersion>

<groupId>pp</groupId>
 <artifactId>y-pom</artifactId>
 <name>yy</name>
 <packaging>pom</packaging>
 <version>1-SNAPSHOT</version>

<modules>
 <module>pp1</module>
 <module>pp</module>
 </modules>
<properties>
 <revision>1-SNAPSHOT</revision>
 </properties>
</project>

File ./pp/pom.xml:

<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/xsd/maven-4.0.0.xsd">

<modelVersion>4.0.0</modelVersion>

<groupId>pp</groupId>
 <artifactId>pp-pom</artifactId>
 <name>PP</name>
 <packaging>pom</packaging>
 <version>${revision}</version>
 <parent>
 <groupId>pp1</groupId>
 <artifactId>pp-pom</artifactId>
 <version>1-SNAPSHOT</version>
 <!--<version>${revision}</version>-->
 <relativePath>../pp1/pom.xml</relativePath>
 </parent>
 <properties>
 <revision>1-SNAPSHOT</revision>
 </properties>

</project>

File ./pp1/pom.xml:

<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/xsd/maven-4.0.0.xsd">

<modelVersion>4.0.0</modelVersion>

<groupId>pp1</groupId>
 <artifactId>pp-pom</artifactId>
 <name>PP</name>
 <packaging>pom</packaging>
 <version>${revision}</version>

<properties>
 <revision>1-SNAPSHOT</revision>
 </properties>
</project>