response [][]byte
	err      error
}

// Serialize is part of request interface.
func (fr *fakeRequest) Serialize() []byte { return nil }

// AddData is part of request interface.
func (fr *fakeRequest) AddData(data nl.NetlinkRequestData) {
	fr.data = append(fr.data, data)
}

// AddRawData is part of request interface.
func (fr *fakeRequest) AddRawData(_ []byte) {}

            saveError(messages -> messages.addErrorsUnknownVersionForUpgrade(GLOBAL));
        }
        return redirect(getClass());
    }

    private void upgradeFrom13_0() {
        UpgradeUtil.addData(searchEngineClient, ".fess_config.scheduled_job", "label_updater",