Metacat

Here is a comment from Matt in bug 5543:

The COS Mime multipart library is incredibly old, and we should
seriously consider replacing it. On the client side for DataONE, we've
switched to using the nicely maintained Apache HttpComponents implementation,
particularly the MIME MultipartEntity class for representing our mime messages
(http://hc.apache.org/httpcomponents-client-ga/httpmime/apidocs/org/apache/http/entity/mime/MultipartEntity.html).