final File file = tempFolder.newFile("hoge.properties");
        final Writer writer = WriterUtil.create(file);
        PropertiesUtil.store(outProperties, writer, "comments");
        CloseableUtil.close(writer);
        final Properties properties = new Properties();
        PropertiesUtil.load(properties, file);
        assertThat(properties.getProperty("a"), is("A"));
    }

    /**

        return getProperties().get(key);
    }

    @Override
    public String getProperty(final String key, final String defaultValue) {
        return getProperties().getProperty(key, defaultValue);
    }

    @Override
    public String getProperty(final String key) {
        return getProperties().getProperty(key);
    }

    @Override
    public int hashCode() {

        // update java.io.tmpdir
        final String tempPath = System.getProperty(FESS_TEMP_PATH);
        if (tempPath != null) {
            System.setProperty(JAVA_IO_TMPDIR, tempPath);
        }

        final TomcatBoot tomcatBoot = new FessBoot(getPort(), getContextPath()) //
                .useTldDetect(); // for JSP
        final String varPath = System.getProperty(FESS_VAR_PATH);
        if (varPath != null) {

                return getResourcePath(getProperty(SPNEGO_LOGIN_CONF, "auth_login.conf"));
            }
            if (SpnegoHttpFilter.Constants.KRB5_CONF.equals(name)) {
                return getResourcePath(getProperty(SPNEGO_KRB5_CONF, "krb5.conf"));
            }
            if (SpnegoHttpFilter.Constants.CLIENT_MODULE.equals(name)) {
                return getProperty(SPNEGO_LOGIN_CLIENT_MODULE, "spnego-client");

     */
    public static final String PATH_SEPARATOR = System.getProperty("path.separator");

    /**
     * <code>os.name</code> システムプロパティ。例:<code>Mac OS X</code>
     */
    public static final String OS_NAME = System.getProperty("os.name");

    /**
     * <code>java.io.tmpdir</code> システムプロパティ。例：/tmp
     */
    public static final String JAVA_IO_TMPDIR = System.getProperty("java.io.tmpdir");

    /**

    }

    @SuppressWarnings("deprecation")
    public static String getSearchEngineHttpAddress() {
        final String value = System.getProperty(Constants.FESS_SEARCH_ENGINE_HTTP_ADDRESS);
        if (value != null) {
            return value;
        }
        return System.getProperty(Constants.FESS_ES_HTTP_ADDRESS);
    }

        ResourceUtil.getOverrideConfPath().ifPresent(p -> {
            buf.append(p);
            buf.append(cpSeparator);
        });
        final String confPath = System.getProperty(Constants.FESS_CONF_PATH);
        if (StringUtil.isNotBlank(confPath)) {
            buf.append(confPath);
            buf.append(cpSeparator);
        }
        // WEB-INF/env/suggest/resources

    private static final String TEST_TOKEN = "test.token";

    public static String getTestToken() {
        return System.getProperty(TEST_TOKEN, DEFAULT_TEST_TOKEN);
    }

    public static String settingTestToken() {
        final String testToken = System.getProperty(TEST_TOKEN);
        if (testToken != null) {
            logger.info("Token: {}", testToken);
            return testToken;
        }

        return ComponentUtil.getSystemProperties().getProperty(OIC_CLIENT_SECRET, StringUtil.EMPTY);
    }

    protected String getOicTokenServerUrl() {
        return ComponentUtil.getSystemProperties().getProperty(OIC_TOKEN_SERVER_URL, "https://accounts.google.com/o/oauth2/token");
    }

    protected String getOicRedirectUrl() {
        return ComponentUtil.getSystemProperties().getProperty(OIC_REDIRECT_URL, "http://localhost:8080/sso/");

        File basedir = new File(System.getProperty("java.io.tmpdir"), "test").getAbsoluteFile();

        String aligned = new DefaultPathTranslator().alignToBaseDirectory("${basedir}", basedir);

        assertEquals(basedir.getAbsolutePath(), aligned);
    }

    @Test
    void testAlignToBasedirWhereBasedirExpressionIsTheValuePrefix() {
        File basedir = new File(System.getProperty("java.io.tmpdir"), "test").getAbsoluteFile();