J2EE is a set of APIs. JSPs and servlets are technologies and APIs in the J2EE domain. So I think this question is a bit confusing.
People often use J2EE as shorthand for EJBs and application containers (WebSphere / WebLogic, etc.). Instead, you can run a servlet container (e.g. Tomcat / Jetty, etc.) that handles web technologies, but a little more using standard J2SE with (say) Servlet API and nothing more. I suspect you are behind him.
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