Erro ao acessar buscaEmpresa.jsp | Servlets: Fundamentos de Java na Web

Ao acessar o buscaEmpresa, apresenta erro:

HTTP Status 500 - An exception occurred processing JSP page /WEB-INF/paginas/buscaEmpresa.jsp at line 12

type Exception report

message An exception occurred processing JSP page /WEB-INF/paginas/buscaEmpresa.jsp at line 12

description The server encountered an internal error that prevented it from fulfilling this request.

exception

org.apache.jasper.JasperException: An exception occurred processing JSP page /WEB-INF/paginas/buscaEmpresa.jsp at line 12

9:     Lista de empresas : 
10:     <ul>
11:         <c:forEach var="empresa" items="${empresas}" >
12:             <li> ${empresa.getId()} : ${empresa.getEmail()} </li><br>    
13:         </c:forEach>
14:     </ul>
15: </body>


Stacktrace:
    org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:575)
    org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:477)
    org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:395)
    org.apache.jasper.servlet.JspServlet.service(JspServlet.java:339)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:731)
    org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
    br.com.alura.gerenciador.web.BuscaEmpresa.doPost(BuscaEmpresa.java:28)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:650)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:731)
    org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
    br.com.alura.gerenciador.web.FiltroDeAuditoria.doFilter(FiltroDeAuditoria.java:42)
root cause

javax.el.MethodNotFoundException: Method not found: class br.com.alura.gerenciador.Empresa.getEmail()
    javax.el.Util.findWrapper(Util.java:352)
    javax.el.Util.findMethod(Util.java:214)
    javax.el.BeanELResolver.invoke(BeanELResolver.java:174)
    org.apache.jasper.el.JasperELResolver.invoke(JasperELResolver.java:139)
    org.apache.el.parser.AstValue.getValue(AstValue.java:174)
    org.apache.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:184)
    org.apache.jasper.runtime.PageContextImpl.proprietaryEvaluate(PageContextImpl.java:950)
    org.apache.jsp.WEB_002dINF.paginas.buscaEmpresa_jsp._jspx_meth_c_005fforEach_005f0(buscaEmpresa_jsp.java:145)
    org.apache.jsp.WEB_002dINF.paginas.buscaEmpresa_jsp._jspService(buscaEmpresa_jsp.java:97)
    org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:731)
    org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:439)
    org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:395)
    org.apache.jasper.servlet.JspServlet.service(JspServlet.java:339)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:731)
    org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
    br.com.alura.gerenciador.web.BuscaEmpresa.doPost(BuscaEmpresa.java:28)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:650)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:731)
    org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
    br.com.alura.gerenciador.web.FiltroDeAuditoria.doFilter(FiltroDeAuditoria.java:42)
note The full stack trace of the root cause is available in the Apache Tomcat/7.0.70 logs.

Apache Tomcat/7.0.70

Código da classe

@WebServlet(urlPatterns="/buscaEmpresa")
public class BuscaEmpresa extends HttpServlet {

    @Override
    protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {

        String filtro = ""; //req.getParameter("filtro");    
        Collection<Empresa> empresas= new EmpresaDAO().buscaPorSimilaridade(filtro);

        req.setAttribute("empresas", empresas);
        RequestDispatcher dispatcher = req.getRequestDispatcher("/WEB-INF/paginas/buscaEmpresa.jsp");
        dispatcher.forward(req, resp);    
    }

Código JSP.


<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>    
<!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=ISO-8859-1">
<title>Busca de empresas</title>
</head>
<body>
    Lista de empresas : 
    <ul>
        <c:forEach var="empresa" items="${empresas}" >
            <li> ${empresa.getId()} : ${empresa.getEmail()} </li><br>    
        </c:forEach>
    </ul>
</body>
</html>