protected Collection<MultiMapRecord> getInternal(Data key) {
throwExceptionIfNull(key);
Collection<MultiMapRecord> coll = txMap.get(key);
if (coll == null) {
GetAllOperation operation = new GetAllOperation(name, key);
operation.setThreadId(ThreadUtil.getThreadId());
try {
int partitionId = getNodeEngine().getPartitionService().getPartitionId(key);
final OperationService operationService = getNodeEngine().getOperationService();
Future<MultiMapResponse> f = operationService.invokeOnPartition(
MultiMapService.SERVICE_NAME,