Java mail MIME type errors

I've developed small job on local machine which sends email with PDF attachments. But when i ran it on test environment, an exception was thrown:

javax.activation.UnsupportedDataTypeException: no object DCH for MIME type multipart/mixed;

While searching the solution, found this question. Solution i found was adding MIME type handlers programmatically:

// add handlers for main MIME types
MailcapCommandMap mc = (MailcapCommandMap)CommandMap.getDefaultCommandMap();
mc.addMailcap("text/html;; x-java-content-handler=com.sun.mail.handlers.text_html");
mc.addMailcap("text/xml;; x-java-content-handler=com.sun.mail.handlers.text_xml");
mc.addMailcap("text/plain;; x-java-content-handler=com.sun.mail.handlers.text_plain");
mc.addMailcap("multipart/*;; x-java-content-handler=com.sun.mail.handlers.multipart_mixed");
mc.addMailcap("message/rfc822;; x-java-content-handler=com.sun.mail.handlers.message_rfc822");
CommandMap.setDefaultCommandMap(mc);

Others solutions didn't work for me - i had recent activation.jar and mail.jar in WEB-INF/lib folder already. Can someone explain me why META-INF/mailcap file wasn't read from mail.jar?

Vendor branches

Little time ago had a little struggle with vendor branches. Red-book describes this concept pretty good, but command line interface is not my favourite (in this particular situation) when it comes to merging.
Preconditions: Eclipse, Subclipse, svn-load (or svn_load_dirs is equivalent, but i'm using Ubuntu and svn-load can be installed from default repositories)
Here's my example:

1. update vendor version

   svn update /path/to/vendor

2. copy updated version to another folder (we'll need to disconnect it from SVN)

   cp -r /path/to/vendor /path/to/vendor_copy
   

3. disconnect folder from SVN

   rm -fr `find /path/to/vendor_copy -type d -name .svn`
   

4. Send changes to SVN with svn-load:
   

   svn-load -t tags/vendor_version_2009-02-01 \
   http://svn.mydomain.com/projectX \
   branches/vendor \
   /path/to/vendor_copy

   * I prefer tagging each vendor import
   
5. In Eclipse be sure that you've committed all changes and you're working in trunk
   
6. Merge new tag and previous one:
   
7. in Team Synchronizing perspective double check all changes (this perspective is really useful for merging)
   
8. commit!

Hope this helps!