private void logout() {
    employeeConnector.logout(
        new EmployeeConnector.EmployeeCallback<Void>() {
          @Override
          public void onServiceSuccess(Void result, ResultStatus status) {
            super.onServiceSuccess(result, status);
            updateLogout("logout success", status);
          }

          @Override
          public void onServiceFailure(ResultStatus status) {
            super.onServiceFailure(status);
            updateLogout("logout failed", status);
          }

          @Override
          public void onServiceConnectionFailure() {
            super.onServiceConnectionFailure();
            updateLogout("logout failed", null);
          }
        });
  }