Should throw exception when incorrect block size is set

void syncBlock(List<BlockRecord> syncList) throws IOException {


       newBlock.setNumBytes(finalizedLength);
        break;
      case RBW:
      case RWR:
        long minLength = Long.MAX_VALUE;
        for(BlockRecord r : syncList) {
          ReplicaState rState = r.rInfo.getOriginalReplicaState();
          if(rState == bestState) {
            minLength = Math.min(minLength, r.rInfo.getNumBytes());
            participatingList.add(r);
          }
          if (LOG.isDebugEnabled()) {
            LOG.debug("syncBlock replicaInfo: block=" + block +
                ", from datanode " + r.id + ", receivedState=" + rState.name() +
                ", receivedLength=" + r.rInfo.getNumBytes() + ", bestState=" +
                bestState.name());
          }
        }
        // recover() guarantees syncList will have at least one replica with RWR
        // or better state.
        assert minLength != Long.MAX_VALUE : "wrong minLength"; <= should throw exception 
        newBlock.setNumBytes(minLength);
        break;
      case RUR:
      case TEMPORARY:
        assert false : "bad replica state: " + bestState;
      default:
        break; // we have 'case' all enum values
      }

WARN org.apache.hadoop.hdfs.server.datanode.DataNode: Can't replicate block xyz because on-disk length 11852203 is shorter than NameNode recorded length 9223372036854775807