Looking for api to avoid form submission by robot

Good morning I am looking for a java api to avoid form submission by robot: - generate/display image with a code (text or number). - validate the code entered by the user in the form. I have searched for solution on the web but found nothing in java. Any clues would be appreciated Thank you Fr

How to get the list of locales supported by a struts application ?

Good morning for a struts application I need to display the list of locales supported by the application. Can I avoid to manage this list manually ? i..e is there a simple way to know all the locales that have a corresponding ApplicationResources file ? thank you for any suggestion F