Extending Tomcat integration to collect additional JMX metrics (e.g., java_lang_OperatingSystem, oracle_ucp_admin)

I am currently exploring the Tomcat integration using the Elastic Agent. From my observations, the default metrics collected through the JMX Prometheus exporter do not include all available data. For example, metric sets such as java_lang_OperatingSystem_* and oracle_ucp_admin_UniversalConnectionPoolMBean are not being collected or visualized. Could you please advise on how to extend the existing integration to collect these additional metrics and include them in visualizations?