if (target == null || replacement == null) {
            throw new CrawlerSystemException("target or replacement are null.");
        }
        convertMap.put(target, replacement);
    }

    public void setConvertMap(final Map<String, String> convertMap) {
        this.convertMap = convertMap;
    }

            String[] alphabets;
            if (i + 1 < text.length() && convertMap.get(text.substring(i, i + 2)) != null) {
                alphabets = convertMap.get(text.substring(i, i + 2));
                i += 2;
            } else {
                if (convertMap.get(text.substring(i, i + 1)) != null) {
                    alphabets = convertMap.get(text.substring(i, i + 1));
                } else {

     * @param locale
     *            ロケール
     * @return {@link Map}
     */
    public static final Map<String, String> convertMap(final String name, final Locale locale) {
        assertArgumentNotEmpty("name", name);

        final ResourceBundle bundle = getBundle(name, locale);
        return convertMap(bundle);
    }

    /**
     * {@literal locale}が{@literal null}でなければ{@literal locale}を、{@literal null}

     */
    @Test
    public void testConvertMap() throws Exception {
        final ResourceBundle bundle = ResourceBundleUtil.getBundle("CLMessages", null);
        final Map<String, String> map = ResourceBundleUtil.convertMap(bundle);
        final String value = map.get("ECL0001");
        System.out.println(value);
        assertThat(value, is(notNullValue()));
    }

    /**
     * @throws Exception
     */
    @Test