Add boundary check for SparseTable.

    const int indexTableReadingPos = getPosInIndexTable(id);

    const int index = mIndexTableBuffer->readUint(INDEX_SIZE, indexTableReadingPos);

    const int contentTableReadingPos = getPosInContentTable(id, index);

    if (contentTableReadingPos < 0

            || contentTableReadingPos >= mContentTableBuffer->getTailPosition()) {

        AKLOGE("contentTableReadingPos(%d) is invalid. id: %d, index: %d",

                contentTableReadingPos, id, index);

        return NOT_A_DICT_POS;

    }

    const int contentValue = mContentTableBuffer->readUint(mDataSize, contentTableReadingPos);

    return contentValue == NOT_EXIST ? NOT_A_DICT_POS : contentValue;

}