JSDK (Java Servlet Development Kit) is a package containing all the classes and interfaces needed to develop servlets. JSDK also contains a web server and servlet engine to test your creations.

SIP Servlet Defined in Java Specification Request 116, the SIP Servlet Specification provides a container-servlet programming model for SIP applications.

Among the changes introduced in Servlet 2.5: A new dependency on J2SE 5.0 Support for annotations Several web.xml conveniences A handful of removed restrictions Some edge case clarifications ...