Maven multi-module project version management [duplicate]

Question

What is the best practice for specifying version of a multimodule maven project?

I would like to have one version string across all modules. Even if I can have only one version definition in the root parent pom, I need to specify the parent pom version in each pom's. Which means, if I need to change version, I need to change all poms. Practically defeats the purpose. Any ideas??

Answer 1

Have you tried the versions-maven plugin ?

with mvn versions:set -DnewVersion="1.1-SNAPSHOT" you are able to set in all underlying maven projects the given version.

Afterwards you have to do a mvn versions:commit to remove temporary files and commit to your VCS

Answer 2

The better way is define your version in parent pom.xml as follows.

<groupId>com.my.code</groupId> <artifactId>my_pro</artifactId> <version>${YOUR_VERSION}</version>  <properties>     <JDK_VERSION>1.7</JDK_VERSION>             <YOUR_VERSION>1.0-SNAPSHOT</YOUR_VERSION>// here you define your version     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>     <org.springframework.version>3.1.2.RELEASE</org.springframework.version> </properties> 

Then you don't want to change your version number one by one in all child pom.xml.

child pom.xml can add dependency as follows

<version>${YOUR_VERSION}</version>