| Authenticator | Implementations of this class are used to parse credentials and
authenticate client requests |
| CgiServlet | Http Servlet used to run CGI programs |
| Cookie | Creates a cookie, a small amount of information sent by a servlet to a
Web browser, saved by the browser, and later sent back to the server |
| FormInput | Used to represent a form input found in the body of an http request |
| FormValue | Used to retrieve the value associated with a form input found in the body
of an http request |
| HttpServlet | The HttpServer requires an implementation of an HttpServlet in order to
process HTTP requests |
| HttpServletRequest | Used to read raw bytes sent from the client to the server |
| HttpServletResponse | Used to generate a response to an HTTP request |
| HttpSession | Provides a way to identify a user and store information about the user
across multiple page requests/visits |
| JspServlet | Http Servlet used to serve JSP files |
| ServletContext | Provides a mechanism to store application data across servlets |
| ServletException | Defines a general exception a servlet can throw when it encounters an
invalid request or error |
| ServletInputStream | Provides an input stream for reading the body of an http request |
| ServletOutputStream | Provides an output stream for writing to the body of an http response |
| WebSocketListener | Used to process WebSocket requests |