final DataRecordIdentifier dataRecordIdentifier1 = heapFileDataManager
.getNewDataRecordIdentifier();
final DataRecordIdentifier dataRecordIdentifier2 = heapMultiFileDataManager
.getNewDataRecordIdentifier();
if (dataRecordIdentifier1.value != dataRecordIdentifier2.value) {
throw new HeapException("difference on new data record identifier");
}
return dataRecordIdentifier1;
}