docs: @Override
      public CallbackHandler getCallbackHandler(byte[] credToken, String authMechOid) {
          AuthenticationData authenticationData = new WSAuthenticationData();
          authenticationData.set(AuthenticationData.TOKEN, credToken);
          authenticationData.set(AuthenticationData.AUTHENTICATION_MECH_OID, authMechOid);
          return new AuthenticationDataCallbackHandler(authenticationData);
      }