This plugin is designed to give you a build number. So when you might make 100 builds of version 1.0-SNAPSHOT, you can differentiate between them all.
'org.codehaus.mojo:buildnumber-maven-plugin:1.2'
<dependency>
<groupId>org.codehaus.mojo</groupId>
<artifactId>buildnumber-maven-plugin</artifactId>
<version>1.2</version>
</dependency>
<dependency org="org.codehaus.mojo" name="buildnumber-maven-plugin" rev="1.2"/>
"org.codehaus.mojo", "buildnumber-maven-plugin", "1.2"