code: public void setToBeDeleted()
    {
      if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled())
        SibTr.entry(tc, "setToBeDeleted");
      
      synchronized (_anycastInputHandlers) 
      { 
        _toBeDeleted = true;
      }
      
      if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled())
        SibTr.exit(tc, "setToBeDeleted");
    }
docs: Method to indicate that the destination has been deleted