'org.apache.tomcat:tomcat-util:7.0.21'
<dependency>
<groupId>org.apache.tomcat</groupId>
<artifactId>tomcat-util</artifactId>
<version>7.0.21</version>
</dependency>
<dependency org="org.apache.tomcat" name="tomcat-util" rev="7.0.21"/>
"org.apache.tomcat", "tomcat-util", "7.0.21"