Tomcat

• EmbeddedJmxTrans configuration URL: classpath:org/jmxtrans/embedded/config/tomcat-6.json
• Source: tomcat-6.json
• Collected Metrics
• Thread Pools
• Sessions
• JDBC Data Sources
• Global Request Processor
• Servlets
• Spring configuration:

<bean id="jmxtrans" class="org.jmxtrans.embedded.EmbeddedJmxTransFactory">
  <property name="configurationUrls">
    <list>
      <value>classpath:org/jmxtrans/embedded/config/tomcat-6.json</value>
      ...
    </list>
  </property>
</bean>

Note: configuration templates are generic and may not exactly fit your needs but are always useful for copy/paste.