code: public BulkProcessor buildBulkProcessor(Listener bulkProcessorListener,
              int bulkActions, long bulkSizeKB, int flushIntervalSeconds) {
          return buildBulkProcessor(bulkProcessorListener, bulkActions,
                  bulkSizeKB, flushIntervalSeconds, null, null);
      }
docs: Build bulk processor bulk processor.
  
  @param bulkProcessorListener the bulk processor listener
  @param bulkActions           the bulk actions
  @param bulkSizeKB            the bulk size kb
  @param flushIntervalSeconds  the flush interval seconds
  @return the bulk processor