default CheckedFuture<Void, TransactionCommitFailedException> submit() {
return MappingCheckedFuture.create(commit().transform(ignored -> null, MoreExecutors.directExecutor()),
SUBMIT_EXCEPTION_MAPPER);
default CheckedFuture<Void, TransactionCommitFailedException> submit() {
return MappingCheckedFuture.create(commit().transform(ignored -> null, MoreExecutors.directExecutor()),
SUBMIT_EXCEPTION_MAPPER);