I'd like to offer the following as an addendum page for the mail component:
****** As recently as JavaMail 1.4.4, there has been an issue using JavaMail in an OSGi framework. This issue interferes with successful handling of multipart MIME messages, including attachments and HTML content. Per the JavaMail javadoc, the content class of a "multipart/alternative" message should be Multipart; however, what is returned in an OSGi bundle is of class SharedByteArrayInputStream. This is not a Camel Mail bug, but can manifest when using the Mail component in an OSGi framework. >From the JavaMail project forum at kenai.com: (http://kenai.com/projects/javamail/forums/forum/topics/13123-multipart-alternative#p27947) It's all about ClassLoaders and the assumptions that OSGi breaks... JavaMail (and JAF, which is the culprit in this case) uses the ClassLoader.getResource method to load configuration files that are contained in the JavaMail jar file. With OSGi, that doesn't work. So all the configuration JAF needs to find the correct class to handle certain MIME types is missing. You can try using Thread.setContextClassLoader to set it to the ClassLoader of your application bundle. If that doesn't work, a more complicated workaround may be required. -- Shannon >From the Apache Felix users mailing list: >From Caspar MacRae <ear...@gmail.com> Subject Re: JavaMail and Felix Date Wed, 06 Jul 2011 09:56:05 GMT Try adding the JavaMail (1.4.4) jar to your classpath and then put this into the parameters for launching Felix, org.osgi.framework.system.packages.extra=com.sun.mail.auth;version=1.4.4, \ com.sun.mail.handlers;version=1.4.4, \ com.sun.mail.iap;version=1.4.4, \ com.sun.mail.imap;version=1.4.4, \ com.sun.mail.imap.protocol;version=1.4.4, \ com.sun.mail.pop3;version=1.4.4, \ com.sun.mail.smtp;version=1.4.4, \ com.sun.mail.util;version=1.4.4, \ com.sun.mail.util.logging;version=1.4.4, \ javax.mail;version=1.4.4, \ javax.mail.event;version=1.4.4, \ javax.mail.internet;version=1.4.4, \ javax.mail.search;version=1.4.4, \ javax.mail.util;version=1.4.4 It means you won't be able to hotdeploy JavaMail, but it should work more like CLI wrt mailcap etc.
