Tomcat is the Java Servlet / Java Server Page environment produced
by the Apache Foundation's Tomcat Project.  Tomcat can be run as a
standalone web server with Servlet and JSP support, or using Apache
Server as its web server via the mod_jk Apache module (www/ap-jk).

This is the Tomcat 5.5 package, which is a Java Serlet 2.4 and JSP
2.0 server.