public void addServlet(String name, String pathSpec, Class<? extends HttpServlet> clazz) {
    addServlet(name, pathSpec, clazz, rootWebAppContext);
  }
Add a servlet to the rootWebAppContext that is added to the webserver during its initialization.
@param name The name of the servlet (can be passed as null)
@param pathSpec The path spec for the servlet
@param clazz The servlet class
common/src/java/org/apache/hive/http/HttpServer.java