Hi Matthias,

AFAIR, we have a Jira about that. Are you sure about the activation
version you are using ?

Regards
JB

On 27/01/2020 21:16, Matthias Leinweber wrote:
> 
> Hello Karaf Users,
> 
> Hello Karaf-Team,
> 
> I try to create a Component which is able to send mails. I looked into
> the decanter email component and basically used it  and modified it for
> multi part.
> The strange this is, that somehow the client can't read a response. I
> have no idea what i could do... i read something about class loader
> problems with this error. But i cant get it working.
> Using karaf 4.2.8 with java9
> I added com.sun.activation/javax.activation/1.2.0 for
> javax.activation.DataHandler (missing/hidden/removed in jdk9?)
> 
> Here is the debug log from the Session:
> 
> DEBUG: setDebug: JavaMail version 1.6.0
> DEBUG: getProvider() returning
> javax.mail.Provider[TRANSPORT,smtp,com.sun.mail.smtp.SMTPTransport,Oracle,1.6.0]
> DEBUG SMTP: useEhlo true, useAuth false
> DEBUG SMTP: trying to connect to host "172.18.0.1", port 25000, isSSL false
> 220 this-is-correct.xx ESMTP Postfix
> DEBUG SMTP: connected to host "172.18.0.1", port: 25000
> 
> EHLO c7182e3f0afe
> 250-this-is-correct.xx
> 250-PIPELINING
> 250-SIZE 30720000
> 250-VRFY
> 250-ETRN
> 250-ENHANCEDSTATUSCODES
> 250-8BITMIME
> 250 DSN
> DEBUG SMTP: Found extension "PIPELINING", arg ""
> DEBUG SMTP: Found extension "SIZE", arg "30720000"
> DEBUG SMTP: Found extension "VRFY", arg ""
> DEBUG SMTP: Found extension "ETRN", arg ""
> DEBUG SMTP: Found extension "ENHANCEDSTATUSCODES", arg ""
> DEBUG SMTP: Found extension "8BITMIME", arg ""
> DEBUG SMTP: Found extension "DSN", arg ""
> DEBUG SMTP: use8bit false
> MAIL FROM:<also-cor...@somewhere.xx>
> 250 2.1.0 Ok
> RCPT TO:<my.corrent@mail.address>
> 250 2.1.5 Ok
> DEBUG SMTP: Verified Addresses
> DEBUG SMTP:   my.corrent@mail.address
> DATA
> 354 End data with <CR><LF>.<CR><LF>
> DEBUG SMTP: IOException while sending, closing, THROW:
> javax.activation.UnsupportedDataTypeException: no object DCH for MIME
> type multipart/mixed;
> boundary="----=_Part_0_973667738.1580155842011"
> ....
> 
> And here is basically my code:
> properties = new Properties();
> properties.put("mail.smtp.host", cc.getString("hostname"));
> properties.put("mail.smtp.port", cc.getString("port"));
> properties.put("mail.smtp.connectiontimeout", "10000");
> properties.put("mail.smtp.timeout", "10000");
> [....]
> 
> Session session = Session.getInstance(properties);
> session.setDebug(true);
> MimeMessage message = new MimeMessage(session);
> Multipart multipart = new MimeMultipart();
> message.setFrom(new InternetAddress(from));
> message.setSubject(subject);
> for (String to : tos) {
>   message.addRecipients(Message.RecipientType.TO
> <http://Message.RecipientType.TO>, to);
> }
> 
> BodyPart messageBodyPart = new MimeBodyPart();
> messageBodyPart.setText("This is message body");
> multipart.addBodyPart(messageBodyPart);
> 
> byte[] bytes = bos.toByteArray(); //very small
> MimeBodyPart mimeBodyPart = new MimeBodyPart();
> ByteArrayDataSource ds = new ByteArrayDataSource(bytes,
> "application/octet-stream");
> mimeBodyPart.setDataHandler(new DataHandler(ds));
> mimeBodyPart.setFileName(UUID.randomUUID().toString());
> multipart.addBodyPart(mimeBodyPart);
> 
> message.setContent(multipart);
> Transport.send(message);
> 
> best regards,
> it is not 

-- 
Jean-Baptiste Onofré
jbono...@apache.org
http://blog.nanthrax.net
Talend - http://www.talend.com

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