JSP technology allows a container to support any scripting language that can call Java objects. If you wish to use a scripting language other than the default, java, you must specify it in the language attribute of the page directive at the beginning of a JSP page:
<%@ page language="scripting-language" %>
Because scripting elements are converted to programming language statements in the JSP page’s servlet class, you must import any classes and packages used by a JSP page. If the page language is java, you import a class or package with the import attribute of the page directive:
<%@ page import="fully-qualified-classname, packagename.*" %>
The webclient JSP page response.jsp uses the following page directive to import the classes needed to access the service classes:
<%@ page import= "helloservice.endpoint.HelloService, helloservice.endpoint.Hello" %>