Sending attachments with javax.mail

Hi,

I'm having a bit of difficulty as it appears that the DataHandler class referenced in com.sap.javax.mail-1.41.jar javax.mail.internet.MimeBodyPart.setDataHandler is different to the one that is referenced in com.sap.javax.activation-1.1.1.jar

thus I'm getting:

java.lang.LinkageError: loader constraint violation: when resolving method "javax.mail.internet.MimeBodyPart.setDataHandler(Ljavax/activation/DataHandler;)V" the class loader (instance of org/eclipse/osgi/internal/baseadaptor/DefaultClassLoader) of the current class, au/com/discoveryconsulting/timesheet/demo/mail/MailEventSender, and the class loader (instance of org/eclipse/osgi/internal/baseadaptor/DefaultClassLoader) for resolved class, javax/mail/internet/MimeBodyPart, have different Class objects for the type n/DataHandler;)V used in the signature

my build path has the SAPNWCloud components above the JRE so the SAP libs should be the ones that are being referenced and not the ones from the JDK.

I'm currently running SDK 1.12 - so will update to 1.17 and see if that makes a difference...

this is the code that's dying:

MimeBodyPart sigAttachment = new MimeBodyPart();                              mainPart.addBodyPart(sigAttachment);                                FileDataSource sigDS = new FileDataSource(                                                  "/images/Discovery_email_sig.jpg");                              sigAttachment.setDataHandler(new DataHandler(sigDS)); //this line here!

Any pointers much appreciated.

Cheers,

Chris