throw BKException.create(Code.ReadException);
RetCounter counter = new RetCounter();
counter.inc();
Operation r = new ReadOp(lh, firstEntry, lastEntry, this, counter);
engines.get(lh.getId()).sendOp(r);
//qeMap.get(lh.getId()).put(r);
LOG.debug("Going to wait for read entries: " + counter.i);
counter.block(0);
LOG.debug("Done with waiting: " + counter.i + ", " + firstEntry);