System.out.println("ArrayMap.put:" + (System.currentTimeMillis() - start));

        start = System.currentTimeMillis();
        for (int i = 0; i < num; i++) {
            hmap.get(String.valueOf(i));
        }
        System.out.println("HashMap.get:" + (System.currentTimeMillis() - start));

        start = System.currentTimeMillis();
        for (int i = 0; i < num; i++) {
            amap.get(String.valueOf(i));

            System.out.println("CaseInsensitiveMap.put:" + (System.currentTimeMillis() - start));

            start = System.currentTimeMillis();
            for (int i = 0; i < num; i++) {
                hmap.get("a" + String.valueOf(i));
            }
            System.out.println("HashMap.get:" + (System.currentTimeMillis() - start));

            start = System.currentTimeMillis();
            for (int i = 0; i < num; i++) {

    public void testPerformance() throws Exception {
        final int num = 100;
        long start = System.currentTimeMillis();
        for (int i = 0; i < num; i++) {
            System.out.println("test" + i);
        }
        final long sysout = System.currentTimeMillis() - start;
        start = System.currentTimeMillis();
        for (int i = 0; i < num; i++) {
            logger.fatal("test" + i);
        }

        this.timeoutMillis = timeout * 1000L;
        this.permanent = permanent;
        this.startTime = System.currentTimeMillis();
    }

    /**
     * 期限切れかどうかを返します。
     *
     * @return 期限切れかどうか
     */
    public boolean isExpired() {
        return System.currentTimeMillis() >= startTime + timeoutMillis;
    }

    /**
     * 永続的かどうかを返します。
     *
     * @return 永続的かどうか
     */

    /**
     * <code>user.home</code> システムプロパティ。
     */
    public static final String USER_HOME = System.getProperty("user.home");

    public static long currentTimeMillis() {
        // TODO provider
        return System.currentTimeMillis();
    }

        } else {
            propertiesFile = file;
        }
        load();
    }

    public boolean isUpdated() {
        final long now = System.currentTimeMillis();
        if (now - lastChecked < checkInterval) {
            lastChecked = now;
            return false;
        }
        lastChecked = now;

     *
     * @return UUIDの文字列
     */
    public static String create() {
        final StringBuilder buf = new StringBuilder(BASE.length() * 2);
        buf.append(BASE);
        final int lowTime = (int) (System.currentTimeMillis() >> 32);
        StringUtil.appendHex(buf, lowTime);
        StringUtil.appendHex(buf, RANDOM.nextInt());
        return buf.toString();
    }

    private static byte[] getAddress() {
        try {