How to display my application's errors in JSF?

Question

In my JSF/Facelets app, here\'s a simplified version of part of my form:

Answer 1

Simple answer, if you don't need to bind it to a specific component...

Java:

            FacesMessage message = new FacesMessage(FacesMessage.SEVERITY_ERROR, "Authentication failed", null);
            FacesContext context = FacesContext.getCurrentInstance();
            context.addMessage(null, message);      

XHTML: