Checkstyle is a code analyser to help programmers write Java code that adheres to a coding standard.
'org.codehaus.sonar-plugins.java:sonar-checkstyle-plugin:2.3'
<dependency>
<groupId>org.codehaus.sonar-plugins.java</groupId>
<artifactId>sonar-checkstyle-plugin</artifactId>
<version>2.3</version>
</dependency>
<dependency org="org.codehaus.sonar-plugins.java" name="sonar-checkstyle-plugin" rev="2.3"/>
"org.codehaus.sonar-plugins.java", "sonar-checkstyle-plugin", "2.3"