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POjava.lang.ClassCastException: javax.mail.internet.MimeMultipart cannot be cast to java.lang.String at NewClass.main(NewClass.java:34)
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  1. POjava.lang.ClassCastException: javax.mail.internet.MimeMultipart cannot be cast to java.lang.String at NewClass.main(NewClass.java:34)
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    copied!<p>This is the code that is intended to fetch up the email from Gmail server. Along with it also brings the subject and the sender separately. The inbox that i am checking has 5 messages.<em>(some read and some unread)</em> I wanted the html content to be visible , so i used <code>JEditorPane</code></p> <pre><code> import javax.mail.*; import javax.mail.internet.*; import java.util.*; import javax.swing.*; class NewClass { public static void main(String args[]) { Properties props = new Properties(); props.put("mail.imap.host" , "imap.gmail.com" ); props.put("mail.imap.user" , "username"); // User SSL props.put("mail.imap.socketFactory" , 993); props.put("mail.imap.socketFactory.class" , "javax.net.ssl.SSLSocketFactory" ); props.put("mail.imap.port" , 993 ); Session session = Session.getDefaultInstance(props , new Authenticator() { @Override protected PasswordAuthentication getPasswordAuthentication() { return new PasswordAuthentication("username" , "password"); } }); try { Store store = session.getStore("imap"); store.connect("imap.gmail.com" , "username" , "password"); Folder fldr = store.getFolder("Inbox"); fldr.open(Folder.READ_WRITE); Message msgs[] = fldr.getMessages(); for(int i = 0 ; i &lt; msgs.length ; i++) { // program breaks after the following statement System.out.println(InternetAddress.toString(msgs[i].getFrom()) + "&lt;-- FROM" + " " + msgs[i].getSubject() + "&lt;---Subject"); JFrame fr = new JFrame(); JPanel p = new JPanel(); JEditorPane ep = new JEditorPane("text/html" , (String)msgs[i].getContent()); ep.setEditable(false); JScrollPane sp = new JScrollPane(ep); p.add(ep); fr.add(p); fr.setSize(300,300); fr.setVisible(true); } } catch(Exception exc) { } } </code></pre> <p>}</p> <p>The output that i get is : <code>Gmail Team &lt;mail-noreply@google.com&gt;&lt;-- FROM Get Gmail on your mobile phone&lt;---Subject</code></p> <p>After this output the program gives the following exception <code>java.lang.ClassCastException: javax.mail.internet.MimeMultipart cannot be cast to java.lang.String at NewClass.main(NewClass.java:34)</code>. Why the frame is not visible ? </p>
 

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