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