Wie kann ich ClassNotFoundException beheben: com.sun.mail.util.MailLogger?

Question

ich E-Mail senden möchten, ist mein Code unten

public static void main(String[] args) { 

    final String username = "emailId@gmail.com"; 
    final String password = "password"; 

    Properties props = new Properties(); 
    props.put("mail.smtp.auth", "true"); 
    props.put("mail.smtp.starttls.enable", "true"); 
    props.put("mail.smtp.host", "smtp.gmail.com"); 
    props.put("mail.smtp.port", "587"); 

    Session session = Session.getInstance(props, 
     new javax.mail.Authenticator() { 
     protected PasswordAuthentication getPasswordAuthentication() { 
      return new PasswordAuthentication(username, password); 
     } 
     }); 

    try { 

     Message message = new MimeMessage(session); 
     message.setFrom(new InternetAddress("from-email@gmail.com")); 
     message.setRecipients(Message.RecipientType.TO, 
      InternetAddress.parse("email1@google.com")); 
     message.setSubject("Testing Subject"); 
     message.setText("Dear Mail Crawler," 
      + "\n\n No spam to my email, please!"); 

     Transport.send(message); 

     System.out.println("Done"); 

    } catch (MessagingException e) { 
     throw new RuntimeException(e); 
    } 
} 

pom.xml

<dependency> 
    <groupId>javax.mail</groupId> 
    <artifactId>javax.mail-api</artifactId> 
    <version>1.5.5</version> 
</dependency> 

Aber immer Ausnahme

Exception in thread "main" java.lang.NoClassDefFoundError: com/sun/mail/util/MailLogger 
at javax.mail.Session.initLogger(Session.java:230) 
at javax.mail.Session.<init>(Session.java:214) 
at javax.mail.Session.getInstance(Session.java:251) 
at com.smart21.spring.utils.MailTest.main(MailTest.java:26) 
Caused by: java.lang.ClassNotFoundException: com.sun.mail.util.MailLogger 
at java.net.URLClassLoader.findClass(URLClassLoader.java:381) 
at java.lang.ClassLoader.loadClass(ClassLoader.java:424) 
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331) 
at java.lang.ClassLoader.loadClass(ClassLoader.java:357) 

Answer 1

Versuchen von Wechsel:

<groupId>javax.mail</groupId> 

zu:

<groupId>com.sun.mail</groupId>