Like other Java enterprise tools, Tomcat has migrated from the original Java EE specification to Jakarta EE. Tomcat 9 and earlier were based on Java EE; Tomcat 10 and later are based on Jakarta EE.

To understand how to do proper application server development, you need to understand how the two basic containers of an application server work, namely the Web container and the EJB container. This ...

Request handling is the bread and butter of Java web application development. In order to respond to requests from the network, a Java web application must first determine what code will respond to ...

One part of interacting with an application server is invoking the Servlets and Java Server Pages (JSPs) that reside inside of the Web container. The other half of the puzzle is interacting with ...