private void addBinRefToQueueAlreadyLatched(BINReference binRef) {
Long node = new Long(binRef.getNodeId());
BINReference existingRef = (BINReference) binRefQueue.get(node);
if (existingRef != null) {
existingRef.addDeletedKeys(binRef);
} else {
binRefQueue.put(node, binRef);
}
}