String originalValue = System.getProperty(FesenClient.HTTP_ADDRESS);
        try {
            System.setProperty(FesenClient.HTTP_ADDRESS, "http://localhost:9200");
            assertEquals("http://localhost:9200", System.getProperty(FesenClient.HTTP_ADDRESS));
        } finally {
            if (originalValue != null) {
                System.setProperty(FesenClient.HTTP_ADDRESS, originalValue);
            } else {

        final String value = System.getProperty("java.protocol.handler.pkgs");
        if (StringUtil.isEmpty(value)) {
            buf.append("org.codelibs.fess.net.protocol");
        } else if (!value.contains("org.codelibs.fess.net.protocol")) {
            buf.append("|org.codelibs.fess.net.protocol");
        }
        if (buf.length() > 0) {
            System.setProperty("java.protocol.handler.pkgs", buf.toString());
        }

            version = prop.getProperty("fess.version", "0.0.0");
            final String[] values = version.split("\\.");
            majorVersion = Integer.parseInt(values[0]);
            minorVersion = Integer.parseInt(values[1]);
            productVersion = majorVersion + "." + minorVersion;
            System.setProperty("fess.version", version);
            System.setProperty("fess.product.version", productVersion);

                    props.load(Channels.newInputStream(channel));
                }

                props.setProperty(key, Long.toString(System.currentTimeMillis()));

                if (error != null) {
                    props.setProperty(key + ERROR_KEY_SUFFIX, error);
                } else {
                    props.remove(key + ERROR_KEY_SUFFIX);
                }

            // create a sax parser
            final SAXParser parser = spfactory.newSAXParser();
            try {
                parser.setProperty(XMLConstants.ACCESS_EXTERNAL_DTD, StringUtil.EMPTY);
                parser.setProperty(XMLConstants.ACCESS_EXTERNAL_SCHEMA, StringUtil.EMPTY);
            } catch (final Exception e) {
                if (logger.isDebugEnabled()) {

    fun configureLogging(
      debug: Boolean,
      showHttp2Frames: Boolean,
      sslDebug: Boolean,
    ) {
      if (debug || showHttp2Frames || sslDebug) {
        if (sslDebug) {
          System.setProperty("javax.net.debug", "")
        }
        LogManager.getLogManager().reset()
        val handler =
          object : ConsoleHandler() {
            override fun publish(record: LogRecord) {

        // Get existing component and update it instead of registering new one
        DynamicProperties existingProps = SingletonLaContainerFactory.getContainer().getComponent("systemProperties");
        existingProps.setProperty("ldap.security.principal", "******@****.***");

        assertEquals("@fess.codelibs.local", fessConfig.getLdapSecurityPrincipal(null));
        assertEquals("@fess.codelibs.local", fessConfig.getLdapSecurityPrincipal(""));

        // package when it is listed in the 'java.protocol.handler.pkgs' system property.
        // We use mock handlers since actual system handlers might not be available in test environment.
        System.setProperty("java.protocol.handler.pkgs", "jcifs");
        setupMockProtocolHandlers();
        URL url = new URL("http://example.com/resource");

        URLConnection connection = handler.openConnection(url);

        p.putAll(System.getProperties());
        p.setProperty("jcifs.smb.client.soTimeout", "600000");
        p.setProperty("jcifs.smb.client.attrExpirationPeriod", "300000");

        final Enumeration<String> e = getInitParameterNames();
        while (e.hasMoreElements()) {
            name = e.nextElement();
            if (name.startsWith("jcifs.")) {
                p.setProperty(name, getInitParameter(name));
            }

    }

    // Test initialization with system property
    public void test_init_withSystemProperty() {
        File customDir = new File(tempDir, "custom");
        System.setProperty(Constants.FESS_THUMBNAIL_PATH, customDir.getAbsolutePath());
        try {
            ThumbnailManager manager = new ThumbnailManager() {
                @Override