Something

<%@ taglib prefix="c" uri="http://java.sun.com/jstl/core" %>
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%@ page import="java.util.List" %>
<%@ page isELIgnored="false"%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head> 
    <title>My JSP 'ADMIN_ClientManager.jsp' starting page</title>
  </head>
  
  <body>
  	<% System.out.println(((List)request.getAttribute("clientList")).isEmpty());%>
  	
  	#{clientList}
    <c:forEach var="client" items="#{clientList}">
    	<c:out value="#{client.name}"/>
    </c:forEach>
  </body>
</html>