protected void processNotFoundException() throws Exception {
   logger.error(
       "VC object "
           + MoUtil.morefToString(moRef)
           + " is already deleted from VC. Purge from vc cache");
   // in case the event is lost
   VcCache.purge(moRef);
 }
 @Override
 public final String getId() {
   return MoUtil.morefToString(moRef);
 }