Tomcat Servlet 2.4 Tests Provides a web application used by the Tomcat unit tests to ensure that Tomcat meets the requirements of the current JSP and Servlet specification for web applications that declare that they follow version 2.4 of the Servlet specification and version 2.0 of the JSP specification. This typically means ensuring that features introduced in later versions of the specification do not change the behaviour of applications that declared an earlier version of the specification.