public BytesRefWritable unCheckedGet(int index) {
    return bytesRefWritables[index];
  }
Gets the BytesRefWritable at the specified position without checking.

@param index
         the position index, starting from zero
@throws IndexOutOfBoundsException
serde/src/java/org/apache/hadoop/hive/serde2/columnar/BytesRefArrayWritable.java