java.lang.NoClassDefFoundError: could not initialize class javax.E-mail.internet.InternetAddress

Ich bin versucht, senden Sie eine E-Mail mit der JavaMail API. Hier ist mein code auf der servlet:

package com.lsp.web;

import com.lsp.service.Mailer;
import javax.ejb.EJB;
import javax.mail.MessagingException;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

@WebServlet(name = "contact", urlPatterns = {"/contact"})
public class ContactServlet extends SpringInjectedServlet {
@EJB
private Mailer emailBean;

@Override
public void init() throws ServletException {

}

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

@Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
    String customerEmail = req.getParameter("email");
    String subject = req.getParameter("subject");
    String body = req.getParameter("message");

    String error = null;
    String succMess = null;

    try {
        javax.mail.internet.InternetAddress ia = new javax.mail.internet.InternetAddress(customerEmail);
        ia.validate();
        emailBean.send(customerEmail, subject, body);
        req.setAttribute("succMessage", succMess);
        req.getRequestDispatcher("sent.jsp").forward(req, resp);

    } catch (javax.mail.internet.AddressException ae) {
        error = "您指出的邮箱地址不存在";
        req.setAttribute("errorMessage", error);
        req.getRequestDispatcher("contact.jsp").forward(req, resp);
    }
    catch (MessagingException mex) {
        error = "发送失败";
        req.setAttribute("errorMessage", error);
        req.getRequestDispatcher("contact.jsp").forward(req, resp);
    }
}
}

In der Zeile, wo ich prüfen, ob der Benutzer die Adresse wo:

javax.mail.internet.InternetAddress ia = new javax.mail.internet.InternetAddress(customerEmail);
ia.validate();

Bekam ich eine Ausnahme.
java.lang.NoClassDefFoundError: could not initialize class javax.E-mail.internet.InternetAddress

In pom.xml ich fügte diese Zeilen:

<!--JavaMail API-->
    <dependency>
        <groupId>javax.mail</groupId>
        <artifactId>javax.mail-api</artifactId>
        <version>1.5.1</version>
    </dependency>

    <!--EJB-->
    <dependency>
        <groupId>javax.ejb</groupId>
        <artifactId>ejb-api</artifactId>
        <version>3.0</version>
    </dependency>

Ich bin mit Tomcat.
Könnte mir jemand sagen, warum dies passiert und wie kann ich das Problem lösen.

Danke.