/*
  * Merges the statistics logs of the ESB artifacts that are not already
  * collected by the request flow.
  */
 private void mergeStatisticsRecords(
     final StatisticsRecord source, final StatisticsRecord destination) {
   StatisticsRecord clonedSourceStatRecord = MessageHelper.getClonedStatisticRecord(source);
   for (StatisticsLog clonedSourceStatLog : clonedSourceStatRecord.getAllStatisticsLogs()) {
     if (!clonedSourceStatLog.isCollectedByRequestFlow()) {
       destination.collect(clonedSourceStatLog);
     }
   }
 }