} else {
long accFirstTxId = acc.get(0).getFirstTxId();
if (accFirstTxId == elis.getFirstTxId()) {
acc.add(elis);
} else if (accFirstTxId < elis.getFirstTxId()) {
outStreams.add(new RedundantEditLogInputStream(acc, fromTxId));
acc.clear();
acc.add(elis);
} else if (accFirstTxId > elis.getFirstTxId()) {
throw new RuntimeException("sorted set invariants violated! " +
"Got stream with first txid " + elis.getFirstTxId() +
", but the last firstTxId was " + accFirstTxId);
}
}
}
if (!acc.isEmpty()) {
outStreams.add(new RedundantEditLogInputStream(acc, fromTxId));
acc.clear();
}
}