@Override
  public void init(ByteArrayRef bytes, int start, int length) {
    if (bytes == null) {
      throw new RuntimeException("bytes cannot be null!");
    }
    this.isNull = false;
  }
Create a LazyObject.

@param oi
         Derived classes can access meta information about this Lazy Object
         (e.g, separator, nullSequence, escaper) from it.
serde/src/java/org/apache/hadoop/hive/serde2/lazy/LazyObject.java