/**
  * Convert 200502 Expires with 200508 WS-Addressing namespace to internal form.
  *
  * @param exposed (may be <code>null</code>)
  * @return converted (<code>null</code> if internal is <code>null</code>)
  */
 public static OfferType convert(org.apache.cxf.ws.rm.v200502wsa15.OfferType exposed) {
   if (exposed == null) {
     return null;
   }
   OfferType internal = new OfferType();
   internal.setExpires(convert(exposed.getExpires()));
   internal.setIdentifier(convert(exposed.getIdentifier()));
   return internal;
 }