"ruhi", The Java Ranch has thousands of visitors every week, many with surprisingly similar names. To avoid confusion we have a naming convention, described at http://www.javaranch.com/name.jsp . We require names to have at least two words, separated by a space, and strongly recommend that you use your full real name. Please choose a new name which meets the requirements. Thanks.
Tomcat is the official "reference" version of the servlet and JSP APIs. You get the complete source code so you can see how things are done. It may not be the fastest available servlet engine but it is free and open source. You can also get an early version of the servlet 2.3 and JSP 1.2 APIs in Tomcat 4.0 Bill