'middlegen:maven-middlegen-plugin:2.1'
<dependency>
<groupId>middlegen</groupId>
<artifactId>maven-middlegen-plugin</artifactId>
<version>2.1</version>
</dependency>
<dependency org="middlegen" name="maven-middlegen-plugin" rev="2.1"/>
"middlegen", "maven-middlegen-plugin", "2.1"