This page lists different types of Java entry points for business transactions.
A tier can have multiple entry points. For example, a Java framework implementation may have a combination of pure Servlets or JSPs, Struts, Web services, and Servlet filters, all co-existing as monitored entry points on the same JVM.
The middle-tier components like EJBs and Spring beans are usually not considered entry points because they are normally accessed using either the front-end layers such as Servlets or from classes that invoke background processes.
For details on types of Java entry points and how to set up custom match rules, see: