// constraint mappings as you like so long as they follow the mapping
// requirements of the servlet api. Next we set a BasicAuthenticator
// instance which is the object that actually checks the credentials
// followed by the LoginService which is the store of known users, etc.
security.setConstraintMappings(Collections.singletonList(mapping));
security.setAuthenticator(new BasicAuthenticator());
security.setLoginService(loginService);
// The Hello Handler is the handler we are securing so we create one,
// and then set it as the handler on the
// security handler to complain the simple handler chain.