docs: public void becomeCloneOf(ManagedObject clone)
      {
          if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled()) SibTr.entry(this, tc, "becomeCloneOf", "Clone="+clone);
  
          PersistableSlicedData object = (PersistableSlicedData)clone;
  
          _dataSlices = object._dataSlices;
  
          _estimatedLength = -1;
  
          if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled()) SibTr.exit(this, tc, "becomeCloneOf");
      }