@Override
  public AsyncTableBuilder<AdvancedScanResultConsumer> getTableBuilder(TableName tableName) {
    return new AsyncTableBuilderBase<AdvancedScanResultConsumer>(tableName, connConf) {

      @Override
      public AsyncTable<AdvancedScanResultConsumer> build() {
        return new RawAsyncTableImpl(AsyncConnectionImpl.this, RETRY_TIMER, this);
      }
    };
  }
If choreService has not been created yet, create the ChoreService.
hbase-client/src/main/java/org/apache/hadoop/hbase/client/AsyncConnectionImpl.java