Problème de récupération de variable dans une JSP

bonjour j'essaye d'afficher des données depuis une servlet dans une jsp grace a la jstl
mais j'ai une erreur que je ne comprend pas.

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Context Path:/jpaProject
Servlet Path:/list.jsp
Path Info:null
Query String:null
Stack Trace
org.apache.jasper.JasperException: javax.el.PropertyNotFoundException: The class 'java.lang.String' does not have the property 'id'.
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:410)

voici la servlet ainsi que la jsp

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<%@ page language="java" contentType="text/html; charset=utf-8"
	pageEncoding="utf-8" isELIgnored="false"%>
<%@taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>Insert title here</title>
</head>
<body>
	<h1>Test SERVLET JPA</h1>
	<c:forEach  var="u" items="users">
		<tr>
			<td><c:out value="${u.id}" /></td>
			<td><c:out value="${u.name}" /></td>
		</tr>
	</c:forEach>
</body>
</html>

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package com.exo.servlet;
 
import java.io.IOException;
import java.util.List;
 
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
 
import com.exo.User;
import com.exo.UserImplDAO;
 
@WebServlet("/ListServlet")
public class ListServlet extends HttpServlet {
	private static final long serialVersionUID = 1L;
 
	@Override
	protected void doGet(HttpServletRequest request,
			HttpServletResponse response) throws ServletException, IOException {
		UserImplDAO userImplDAO = new UserImplDAO();
		List<User> list = userImplDAO.getAllUsers();
		request.setAttribute("users", list);
		request.getRequestDispatcher("/list.jsp").forward(request, response);
	}
 
	@Override
	protected void doPost(HttpServletRequest request,
			HttpServletResponse response) throws ServletException, IOException {
		doGet(request, response);
	}
 
}