'maven:maven-javadoc-plugin:1.8'
<dependency>
<groupId>maven</groupId>
<artifactId>maven-javadoc-plugin</artifactId>
<version>1.8</version>
</dependency>
<dependency org="maven" name="maven-javadoc-plugin" rev="1.8"/>
"maven", "maven-javadoc-plugin", "1.8"