...Domain Name System Security Extensions
Servlet API Package
The javax.servlet.http package contains a number of classes and interfaces that describe and define the contracts between a servlet class running under the HTTP protocol and the runtimeenvironment provided for an instance of such a class by a conforming servlet container.
Sidewinder is a new kind of cross-platform application framework that uses web standards like XHTML, SVG and XForms instead of more complex languages, such as C++ or Java, to produce rich internet-facing applications and widgets.