code: public synchronized void setDeleteInProgress(boolean deleteInProgress)
      {
          if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled())
              SibTr.entry(tc, "setDeleteInProgress");
  
          _deleteInProgress = deleteInProgress;
  
          if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled())
              SibTr.exit(tc, "setDeleteInProgress", Boolean.valueOf(_deleteInProgress));
      }
docs: This method is used where a destination has been marked for deletion but where we need
  to ensure that all the preparatory work for deletion been completed.
  
  @return