docs: private RingbufferContainer<InternalEventJournalCacheEvent, Object> getRingbufferOrNull(
              EventJournalConfig journalConfig, ObjectNamespace namespace, int partitionId) {
          RingbufferService ringbufferService = getRingbufferService();
          RingbufferContainer<InternalEventJournalCacheEvent, Object> container
                  = ringbufferService.getContainerOrNull(partitionId, namespace);
          if (container != null) {
              return container;
          }
  
          return journalConfig != null ? getOrCreateRingbufferContainer(namespace, partitionId, journalConfig) : null;
      }