private List<SlowLogPayload> getSlowLogPayloads(AdminProtos.SlowLogResponseRequest request) {
    NamedQueueGetRequest namedQueueGetRequest = new NamedQueueGetRequest();
    namedQueueGetRequest.setNamedQueueEvent(RpcLogDetails.SLOW_LOG_EVENT);
    namedQueueGetRequest.setSlowLogResponseRequest(request);
    NamedQueueGetResponse namedQueueGetResponse =
      namedQueueRecorder.getNamedQueueRecords(namedQueueGetRequest);
    return namedQueueGetResponse == null
      ? Collections.emptyList()
      : namedQueueGetResponse.getSlowLogPayloads();
  }
confirm that for a ringbuffer of slow logs, payload on given index of buffer has expected
elements
@param i               index of ringbuffer logs
@param j               data value that was put on index i
@param slowLogPayloads list of payload retrieved from {@link NamedQueueRecorder}
@return if actual values are as per expectations
hbase-server/src/test/java/org/apache/hadoop/hbase/namequeues/TestNamedQueueRecorder.java