JAVAMAIL again...

Question

Hi Developer.
If just go on writing some Applets to send email. Using SDK 1.4.1, NB 3.6, JAVAMail 1.3.1 and SAF 1.0.2 I just cant send mail, because...
...IOException while copying message;
javax.activation.UnsupportedDataTypeException: no object DCH for mime type text/plain
at javax.mail..internet.MimeMessage.<init>(MimeMessage.java:205)
I've searched the archive, finds a lot of entryies, but no help. So I tried it again with these actual source:
public void RTK_sendMail(String body, String subject, String sender, String to, String copy) {
String server = "mail.mydomain.com";
Properties props = new Properties();
props.put("mail.smtp.host", server);
Session session = Session.getDefaultInstance(props, null);
try {
InternetAddress from = new InternetAddress(sender);
InternetAddress[] address = {new InternetAddress(to)};
InternetAddress[] replyto = {new InternetAddress(sender)};
Object objBody = new String(body);
MimeMessage msg = new MimeMessage(session);
// Multipart mp = new MimeMultipart();
// MimeBodyPart mbp = new MimeBodyPart();
msg.setFrom(from);
msg.setReplyTo(replyto);
if (copy != null) {
msg.setRecipients(Message.RecipientType.CC, InternetAddress.parse(copy, false));
msg.setSubject(subject, "us-ascii");
msg.setSentDate(new java.util.Date());
msg.setHeader("X-Mailer", "JavaClient/Applet Order-1.000-04/2004");
DataHandler myData = new DataHandler(objBody, "text/plain");
msg.setDataHandler(myData);
com.sun.mail.smtp.SMTPTransport transp = new com.sun.mail.smtp.SMTPTransport(session, new URLName("SMTP", server, -1, "mail", null, null));
com.sun.mail.smtp.SMTPMessage smtpMsg = new com.sun.mail.smtp.SMTPMessage(msg);
transp.connect();
transp.sendMessage(smtpMsg, address);
catch (MessagingException mex) {
mex.printStackTrace();
I've controlled the seqence in the NB-CLASSPATH during compiletime and I think it's ok. The mail server is the same server, where the Applet is at home. I do not now, how I could manipulate the Applet load sequence... If I look into the classloader list, I see javax.mail...., some other classes, my Applet class - but, I can't find any javax.activation class???
So, I that is wrong?

Answer 1

Additional not:
IAfter the initial load of the applet, some javax.mail... class are loaded and no javax.activiation classes. If I press on the button to start send an email, al large number of javax.mail classes and javax.activation classes are loaded in a non-sorted sequence.
Cause that my trouble???