Build Numbers in jars build with Maven

Build Numbers for Maven builds using Cruise Control.

Maven is a very useful tool. For the most part, you can get it to do whatever you want, but the trick is finding out how. One issue that my team had was:

• We’re using Cruise Control
• We’d like to have the CC build number in the Jar Manifests
• We’re using Maven to build.

There are a couple of ways that you could do this, using ant from within maven, but that seems like extra work or at least extra complexity. The solution we found was:

Configure the project POM file to add a manifest to the jar. Most of the following is just using the maven Plugin. There is a great guide to manifests on the maven site so I’ll only show the parts relevant to configuring the manifest to add a cruise control build number.```
org.apache.maven.plugins
maven-jar-plugin



com.berczuk.ManifestDemo
com.berczuk
true



${build.number}

```by adding the line -Dbuild.number=${label} you can pass the CC label for the build on to maven.