code: public boolean offer(byte[] data) throws Exception
      {
          String thisPath = ZKPaths.makePath(path, PREFIX);
          client.create().creatingParentContainersIfNeeded().withMode(CreateMode.PERSISTENT_SEQUENTIAL).forPath(thisPath, data);
          return true;
      }
docs: Inserts data into queue.
  
  @param data the data
  @return true if data was successfully added
  @throws Exception errors