When XOP encoding is enabled as described in
AttachmentMarshaller.isXOPPackage(), this annotation disables datatypes such as
Source or byte that are bound to base64-encoded binary from being considered for
XOP encoding. If a JAXB property is annotated with this annotation or if
the JAXB property's base type is annotated with this annotation,
AttachmentMarshaller.addMtomAttachment(DataHandler, String, String)
AttachmentMarshaller.addMtomAttachment(byte, int, int, String, String, String) is
ever called for the property. The binary data will always be inlined.