public static void addGlobalSuccessInfoMessage(FacesContext facesContext) {
String key = "your-request-processed-successfully";
Object[] args = null;
addGlobalInfoMessage(facesContext, key, args);
}
public static void addGlobalInfoMessage(FacesContext facesContext, String key, Object arg) {
addGlobalInfoMessage(facesContext, key, new Object[] {arg});
}