Yep ! My bad,

I will add something like 

/**                                                                                                                                                           
 * This file is taken from hive 0.11        
 * website : http://hive.apache.org/                                                                         
 * github : https://github.com/apache/hive
 * branch : branch-0.11
 * Issue : https://issues.apache.org/jira/browse/HIVE-2693
 * License : Same as the header	of this file
 *                                                                                                    
 */