JSF - Submit doesn't work after set property COERCE_TO_ZERO

JSF - Submit doesn't work after set property COERCE_TO_ZERO

i'm having headaches with a xhtml page using facelets, jsf and primefaces.
There are a simple page with some inputTexts and a submit button. In the
backend i'm using hibernate validations in some fields.
The problem is that when i click in the submit button, the request is send
successfully with 200 OK and my model (that contains validators) is
validated with success. The setters also were executed, but after nothing
happens. Nothing is showed in eclipse tomcat console.
Can anyone help-me ?
This is the .xhtml file: https://gist.github.com/sandro-csimas/6240531
This is the controller and model classes:
https://gist.github.com/sandro-csimas/6240551
How can i debug JSF ?