protected volatile boolean isBind = false;

    protected FessConfig fessConfig;

    @PostConstruct
    public void init() {
        if (logger.isDebugEnabled()) {
            logger.debug("Initialize {}", this.getClass().getSimpleName());
        }
        fessConfig = ComponentUtil.getFessConfig();
    }

                            t.treeConnect(null, null);
                        }
                    }
                    else {
                        log.debug("Initialize signing");
                        byte[] signingKey = npa.getSigningKey(getContext(), negoResp.getServerData().encryptionKey);
                        if ( signingKey == null ) {

        }
    }

    @PostConstruct
    public void open() {
        if (logger.isDebugEnabled()) {
            logger.debug("Initialize {}", this.getClass().getSimpleName());
        }
        final FessConfig fessConfig = ComponentUtil.getFessConfig();

        String httpAddress = SystemUtil.getSearchEngineHttpAddress();

        ...

                this.in.close();
                this.socket.close();
                log.trace("Socket closed");
            }
            else {
                log.trace("Not yet initialized");
            }
        }
        catch ( Exception e ) {
            log.debug("Exception in disconnect", e);
        }
        finally {
            this.socket = null;
            this.digest = null;