public void setNull() {
    throw new IllegalStateException("should not be called");
  }
Create a LazyBinaryObject.

@param oi
         Derived classes can access meta information about this Lazy Binary
         Object (e.g, length, null-bits) from it.
serde/src/java/org/apache/hadoop/hive/serde2/lazybinary/LazyBinaryObject.java