Java邮件阅读邮件

我在尝试使用JavaMail读取邮件时遇到此错误。请告诉我如何解决此错误：

我的部分代码：

referhEmail();
    }

    private void referhEmail(){
         try {
        Properties props = new Properties();  
        props.setProperty("mail.store.protocol", "pop3");      
        props.setProperty("mail.pop3.port", "110");
        props.setProperty("mail.pop3.host", "localhost");


        Session session = Session.getInstance(props); 
        final Store store = session.getStore("pop3");  
        store.connect("localhost","xxxx@localhost", "xxx");

错误是：

javax.mail.AuthenticationFailedException: Username or password is invalid or incorrect.
at com.sun.mail.pop3.POP3Store.protocolConnect(POP3Store.java:213)
at javax.mail.Service.connect(Service.java:366)
at javax.mail.Service.connect(Service.java:246)
at emailclientgamal.EmailClientGamal.referhEmail(EmailClientGamal.java:462)
at emailclientgamal.EmailClientGamal.connect(EmailClientGamal.java:449)
at emailclientgamal.EmailClientGamal.main(EmailClientGamal.java:551)

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您的用户名或密码是否无效或不正确？@AndyTurner没有问题，只是似乎无法通过身份验证，我尝试了其他方法，但仍然无法。我用mercury做服务器。