I confirm that it is not expected to work currently: here is the reference
documentation for pom interpolation:
http://maven.apache.org/ref/3-LATEST/maven-model-builder/
index.html#Model_Interpolation
there is not parent element in parent
Was it expected to work with Maven 2, before the whole effective pom
calculation was rewritten?
Did you try?
Regards,
Hervé
Le vendredi 2 décembre 2016, 11:31:31 CET Florian Schätz a écrit :
> Hello,
>
> for a project I would like to resolve the "grandparent" version:
>
> <grandparent.version>${project.parent.parent.version}</grandparent.version>
>
> Unfortunately, with Maven 3.3.9 this simply doesn't work, the effective
> pom shows it as unresolved:
>
> <grandparent.version>${project.parent.parent.version}</grandparent.version>
>
> I can reproduce it with any new probject a simple way is, for example,
> using a spring boot project (which should have a parent
> (spring-boot-parent) and a grandparent (spring-boot-dependencies):
>
> <?xml version="1.0" encoding="UTF-8"?>
> <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>com.example</groupId>
> <artifactId>demo</artifactId>
> <version>0.0.1-SNAPSHOT</version>
> <packaging>jar</packaging>
>
> <parent>
> <groupId>org.springframework.boot</groupId>
> <artifactId>spring-boot-starter-parent</artifactId>
> <version>1.4.2.RELEASE</version>
> <relativePath/> <!-- lookup parent from repository -->
> </parent>
>
> <properties>
>
> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
>
> <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
> <java.version>1.8</java.version>
>
> <grandparent.version>${project.parent.parent.version}</grandparent.version>
> </properties>
>
> </project>
>
> Any ideas how to access the parent.parent.version otherwise?
> Unfortunately, I only found closed issues where
> ${project.parent.parent.version} was given as a workaround...
>
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