Checkstyle is a code analyser to help programmers write Java code that adheres to a coding standard.
'org.codehaus.sonar.plugins:sonar-checkstyle-plugin:2.9-RC1'
<dependency>
<groupId>org.codehaus.sonar.plugins</groupId>
<artifactId>sonar-checkstyle-plugin</artifactId>
<version>2.9-RC1</version>
</dependency>
<dependency org="org.codehaus.sonar.plugins" name="sonar-checkstyle-plugin" rev="2.9-RC1"/>
"org.codehaus.sonar.plugins", "sonar-checkstyle-plugin", "2.9-RC1"