My solution: public void validate(FacesContext context, UIComponent cmp, Object value) throws ValidatorException { if (ValidationUtils.validateEmail((String) value)) { MemberManager memberManager = (MemberManager) Component .getInstance("memberManager"); if (!memberManager.isUsernameAvailable((String) value)) { String msg = ResourceBundle.instance().getString( "validation.member.email.taken"); FacesMessage errorMessage = new FacesMessage(); errorMessage.setDetail(msg); errorMessage.setSummary(msg); errorMessage.setSeverity(FacesMessage.SEVERITY_ERROR); throw new ValidatorException(errorMessage); } } else { String msg = ResourceBundle.instance().getString( "validation.member.email.invalid"); FacesMessage errorMessage = new FacesMessage(); errorMessage.setDetail(msg); errorMessage.setSummary(msg); errorMessage.setSeverity(FacesMessage.SEVERITY_ERROR); throw new ValidatorException(errorMessage); } } } View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4121839#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...