subject.underlyingActor().getDOMStoreTransaction().abortFromTransactionActor();
future = akka.pattern.Patterns.ask(subject,
new DataExists(YangInstanceIdentifier.EMPTY, DataStoreVersions.CURRENT_VERSION), 3000);
subject.underlyingActor().getDOMStoreTransaction().abortFromTransactionActor();
future = akka.pattern.Patterns.ask(subject,
new DataExists(YangInstanceIdentifier.EMPTY, DataStoreVersions.CURRENT_VERSION), 3000);