Problems changing CAS lenguage

[carlos maddaleno cuellar]

Hi i having troubles trying to change my cas lenguage when i configure it on my cas.properties to es

like this

##

# CAS Internationalization

#

  locale.default=es

# locale.param.name=locale

  message.bundle.encoding=UTF-8

# message.bundle.cacheseconds=180

# message.bundle.fallback.systemlocale=false

# message.bundle.usecode.message=true

# message.bundle.basenames=classpath:custom_messages,classpath:messages

on my login page all the words thah use accent like ón appears like 

so its like its not working my encoding at begining it was working but when i change it directly from my cas.properties it stop working, someone could help me please?