* It closes expired connections and idle connections that have exceeded a specified timeout.
 * </p>
 *
 * clientConnectionManager the HttpClientConnectionManager used to manage connections
 * idleConnectionTimeout the timeout duration (in milliseconds) for idle connections
 *
 * <p>Methods:</p>
 * <ul>
 *   <li>{@link #expired()}: Handles the expiration of connections by closing expired and idle connections.</li>
 * </ul>
 *

                responseData.setHttpStatusCode(Constants.NOT_FOUND_STATUS_CODE);
                responseData.setCharSet(charset);
                responseData.setContentLength(0);
            } else if (file.isFile()) {
                if (logger.isDebugEnabled()) {
                    logger.debug("Checking SmbFile Size: {}", filePath);
                }
                responseData.setContentLength(file.length());

        this.connectionCheckInterval = connectionCheckInterval;
    }

    /**
     * Sets the idle connection timeout in milliseconds.
     *
     * @param idleConnectionTimeout The idle connection timeout
     */
    public void setIdleConnectionTimeout(final long idleConnectionTimeout) {
        this.idleConnectionTimeout = idleConnectionTimeout;
    }

                responseData.setHttpStatusCode(Constants.NOT_FOUND_STATUS_CODE);
                responseData.setCharSet(charset);
                responseData.setContentLength(0);
            } else if (file.isFile()) {
                // check file size
                responseData.setContentLength(file.length());
                checkMaxContentLength(responseData);

                parseFileOwnerAttribute(responseData, file);

                responseData.setHttpStatusCode(Constants.NOT_FOUND_STATUS_CODE);
                responseData.setCharSet(charset);
                responseData.setContentLength(0);
            } else if (file.isFile()) {
                if (logger.isDebugEnabled()) {
                    logger.debug("Checking SmbFile Size: {}", filePath);
                }
                responseData.setContentLength(file.length());

                responseData.setRedirectLocation(redirect);
                ftpClientQueue.offer(client);
                return;
            }
        }

        if (file.isFile()) {
            responseData.setHttpStatusCode(Constants.OK_STATUS_CODE);
            responseData.setCharSet(Constants.UTF_8);
            responseData.setLastModified(file.getTimestamp().getTime());