code: public void rebuildNode(String fullPath) throws Exception
      {
          Preconditions.checkArgument(ZKPaths.getPathAndNode(fullPath).getPath().equals(path), "Node is not part of this cache: " + fullPath);
          Preconditions.checkState(!executorService.isShutdown(), "cache has been closed");
  
          ensurePath();
          internalRebuildNode(fullPath);
  
          // this is necessary so that any updates that occurred while rebuilding are taken
          // have to rebuild entire tree in case this node got deleted in the interim
          offerOperation(new RefreshOperation(this, RefreshMode.FORCE_GET_DATA_AND_STAT));
      }
docs: NOTE: this is a BLOCKING method. Rebuild the internal cache for the given node by querying
  for all needed data WITHOUT generating any events to send to listeners.
  
  @param fullPath full path of the node to rebuild
  @throws Exception errors