Hi,
I'm getting a ClassCastExeption in the LocalDelivery-Mailet of James v. 2.1.3 when a
message from NotifySender.java is about to be delivered to a local sender of the
original mail.
The Exception is thrown at this line:
"...
// Add qmail's de facto standard Delivered-To header
MimeMessage localMessage = new LocalMimeMessage(message);
..."
The stacktrace shows BodyPart.updateHeaders() as origin.
I guess this is a bug in the JavaMail-implementation v. 1.3 cause the sources of v.
1.2 assumes that a MIME-type of mulitpart is always an instance of Multipart.
Look at this lines of MimeBodypart.java:
"...
static void updateHeaders(MimePart part) throws MessagingException {
DataHandler dh = part.getDataHandler();
if (dh == null) // Huh ?
return;
try {
String type = dh.getContentType();
boolean composite = false;
ContentType cType = new ContentType(type);
if (cType.match("multipart/*")) {
// If multipart, recurse
composite = true;
Object o = dh.getContent();
((MimeMultipart)o).updateHeaders();
}
..."
The mail I've sent was type of "multipart/alternative". The message that is created
around my orignal mail in NotifySender is type of "multipart/mixed" which causes no
error, but when it comes to parse my original mail the exception is thrown. It`s a
wild guess but I believe that there's no DataHandler available for
"multipart/alternative" at least not on my machine, so the object that returns from
dh.getContent() in the code snippet above is an InputStream-object and not a
Multipart-object.
I wanted to debug and looked for the source code of the JavaMail-API but I only found
version 1.2 which is shipped with J2EE 1.3.1-SCSL along with JAF 1.0.1.
Has anybody the sources of JavaMail-1.3 and JAF-1.0.2 or does anybody know a
DataHandler for "multipart/alternative"?
Mark Daring!
