StringUtil.newStringUnsafeMethod = null;
            char[] chars = new char[0];
            assertThat(StringUtil.newStringUnsafe(chars), is(""));
            chars = new char[] { 'a', 'b', 'c' };
            assertThat(StringUtil.newStringUnsafe(chars), is("abc"));
            StringUtil.newStringUnsafeMethod = newStringUnsafeMethod;
            chars = new char[] { 'a', 'b', 'c', ' ' };

        return !isBlank(str);
    }

    /**
     * charを含んでいるかどうか返します。
     *
     * @param str
     *            文字列
     * @param ch
     *            char
     * @return charを含んでいるかどうか
     */
    public static boolean contains(final String str, final char ch) {
        if (isEmpty(str)) {
            return false;
        }

     */
    public static String encodeAttrQuot(final String s) {
        if (s == null) {
            return null;
        }
        final char[] content = s.toCharArray();
        final StringBuilder buf = new StringBuilder(s.length() + 100);
        for (final char element : content) {
            switch (element) {
            case '<':
                buf.append("&lt;");
                break;
            case '>':

     * </table>
     *
     * @param beanDelimiter
     *            JavaBeansのデリミタ
     * @return JavaBeansのデリミタを設定した{@link CopyOptions}
     * @see CopyOptions#beanDelimiter(char)
     */
    public static CopyOptions beanDelimiter(final char beanDelimiter) {
        return new CopyOptions().beanDelimiter(beanDelimiter);
    }

    /**
     * {@literal Map}のデリミタを設定した{@link CopyOptions}を返します。
     * <p>

            final SystemHelper systemHelper = ComponentUtil.getSystemHelper();
            if (StringUtil.isNotBlank(includedPaths)) {
                final StringBuilder buf = new StringBuilder(100);
                char split = 0;
                for (final String path : includedPaths.split("\n")) {
                    if (split == 0) {
                        split = '|';
                    } else {

                @Override
                public String toString() {
                    return name;
                }

                @Override
                public char charAt(final int index) {
                    return name.charAt(index);
                }

                @Override
                public int length() {
                    return name.length();

     */
    protected static String toPlainPattern(final String pattern) {
        final StringBuilder buf = new StringBuilder(pattern.length());
        for (int i = 0; i < pattern.length(); ++i) {
            final char ch = pattern.charAt(i);
            if (Character.isLetterOrDigit(ch) || Character.isWhitespace(ch)) {
                buf.append(ch);
            }
        }
        if (buf.indexOf("yy") == -1) {

    /**
     * プレフィックスです。
     */
    protected String prefix;

    /**
     * JavaBeanのデリミタです。
     */
    protected char beanDelimiter = '$';

    /**
     * Mapのデリミタです。
     */
    protected char mapDelimiter = '.';

    /**
     * 特定のプロパティに関連付けられたコンバータです。
     */
    protected final Map<String, Converter> converterMap = newHashMap();

    /**

        }

        // normalize
        final StringBuilder buf = new StringBuilder(1000);
        for (int i = 0; i < configPath.length(); i++) {
            final char c = configPath.charAt(i);
            if (c == '\\') {
                buf.append('/');
            } else if (c == ' ') {
                buf.append("%20");
            } else if (CharUtil.isUrlChar(c)) {

                    list.add(sb.toString());
                    sb = new StringBuilder();
                }
                pos += separator.length();
                continue;
            }

            char ch = s.charAt(pos);
            pos++;
            if (ch == '\\') {
                sb.append(ch);
                if (pos >= end) {
                    break; // ERROR, or let it go?
                }