Apache Tomcat implements the Java Servlet and the JavaServer Pages (JSP) specifications from Sun Microsystems, and provides a "pure Java" HTTP web server environment for Java code to run. Tomcat 5.5 is the reference implementation for the Java Servlet 2.4 and JavaServer Pages 2.0 technologies. . The official Servlet 2.4 and JSP 2.0 specifications can be found at http://java.sun.com/products/servlet/ and http://java.sun.com/products/jsp/.
