java - CollatorProvider mechanism has no effect on Collator -

i have written collatorprovider adds rule respecting whitespaces when ordering user names. i.e: "martin perez" goes before "martinez perez".

public class mycollatorprovider extends collatorprovider {     @override     public locale[] getavailablelocales() {         return new locale[] {             new locale("en"),             new locale("es","es"),             new locale("es"),             new locale("fr","fr"),             new locale("eu"),             new locale("en","en")         };     }      @override     public collator getinstance(locale locale)     {         rulebasedcollator rbc = (rulebasedcollator) collator.getinstance();                  // order names , surnames respecting white spaces         // add more rules here ....         final string rules = rbc.getrules().replaceall("<'\u005f'", "<' '<'\u005f'");          try         {             return new rulebasedcollator(rules);         }         catch (parseexception pe)         {             throw new error(pe);         }     } } 

i have followed mechanism described in page:https://blogs.oracle.com/kah/entry/user_defined_collation_in_apache

however, deploy jar in jre/lib/ext has no effect on collator, still has old behaviour.

i know jre loads collatorprovider because if change classname in service file exception thrown.

my local code test collator is:

import java.text.collator;  public class testcollator {     public static void main(string[] args)     {         // compare 2 strings in default locale         collator mycollator = collator.getinstance();          if( mycollator.compare("martin perez", "martinez perez") < 0 )             system.out.println("martin perez va antes que martinez perez.");         else             system.out.println("martinez perez va antes que martin perez.");     } } 

i stuck issue. please, me?