final Map<String, String> paramMap = new LinkedHashMap<>();
        if (value != null) {
            int unknownKey = 0;
            final Pattern properyPattern = Pattern.compile(ComponentUtil.getFessConfig().getAppEncryptPropertyPattern());
            final PrimaryCipher cipher = ComponentUtil.getPrimaryCipher();
            final String[] lines = value.split("[\r\n]");
            for (final String line : lines) {

            }

            @Override
            public String getHttpProxyPort() {
                return StringUtil.EMPTY;
            }

            @Override
            public String getAppEncryptPropertyPattern() {
                return ".*password|.*key|.*token|.*secret";
            }
        };
        ComponentUtil.setFessConfig(fessConfig);
        SystemHelper systemHelper = new SystemHelper() {

        super.setUp(testInfo);
        FessProp.propMap.clear();
        FessConfig fessConfig = new FessConfig.SimpleImpl() {
            @Override
            public String getAppEncryptPropertyPattern() {
                return ".*password|.*key";
            }
        };
        ComponentUtil.setFessConfig(fessConfig);
    }

    @Test
    public void test_convertParameterMap() {

            @Override
            public String getAppValue() {
                return appValue.get();
            }

            @Override
            public String getAppEncryptPropertyPattern() {
                return ".*password|.*key|.*token|.*secret";
            }
        });
        final String now = String.valueOf(System.currentTimeMillis());
        helper.updateSystemProperties();

        assertEquals("___change__me___", fessConfig.getAppCipherKey());
    }

    @Test
    public void test_appEncryptPropertyPattern() {
        assertEquals(".*password|.*key|.*token|.*secret", fessConfig.getAppEncryptPropertyPattern());
    }

    @Test
    public void test_appExtensionNames() {
        assertEquals("jpg,jpeg,gif,png", fessConfig.getAppExtensionNames());
    }

    @Test

     * comment: Regex pattern for properties to encrypt.
     * @return The value of found property. (NotNull: if not found, exception but basically no way)
     */
    String getAppEncryptPropertyPattern();

    /**
     * Get the value for the key 'app.log.sensitive.property.pattern'. <br>
     * The value is, e.g. .*password.*|.*secret.*|.*key.*|.*token.*|.*credential.*|.*auth.*|.*private.* <br>