"Anonymous attachments" are MIME attachments that might appear on the wire,
but are not mapped to JAXWS method parameters/return types.

This feature request will make these anonymous attachments to be accessible/provideable
in JAXWS standard way - using

• MessageContextJAXWS.INBOUND_MESSAGE_ATTACHMENTS - to access incoming anynymous attachments
• MessageContextJAXWS.OUTBOUND_MESSAGE_ATTACHMENTS - to provide outgoing anynymous attachments