dcl = (DupCountLN) dupCountRef.fetchTarget(database, dupRoot);
dcl.decDupCount();
assert dcl.getDupCount() >= 0;
EnvironmentImpl envImpl = database.getDbEnvironment();
long dupCountLsn =
dcl.log(envImpl, database.getId(), dupKey, oldDclLsn, locker);
dupRoot.updateDupCountLNRef(dupCountLsn);
dupRoot.releaseLatch();
locker.addDeleteInfo(dupBin, new Key(lnKey));
} else {