return new String(buf);
    }

    private static String getSignature(final Class<?>... paramTypes) {
        if (paramTypes == null || paramTypes.length == 0) {
            return "";
        }
        final StringBuilder buf = new StringBuilder(100);
        for (final Class<?> type : paramTypes) {
            if (type != null) {
                buf.append(type.getName());
            } else {

    def method(Map<String, ?> args, String name, ClassMetaData classMetaData) {
        MethodMetaData method = Mock()
        List<String> paramTypes = args.paramTypes ?: []
        _ * method.name >> name
        _ * method.overrideSignature >> "$name(${paramTypes.join(', ')})"
        _ * method.parameters >> paramTypes.collect {
            def param = new ParameterMetaData("p");
            param.type = new TypeMetaData(it)
            return param

     */
    <T> T newInstance(Object... args);

    /**
     * 引数の型に応じた{@link ConstructorDesc}を返します。
     *
     * @param paramTypes
     *            コンストラクタに渡す引数型の並び
     * @return 引数の型に応じた{@link ConstructorDesc}
     */
    ConstructorDesc getConstructorDesc(Class<?>... paramTypes);

    /**
     * 引数に適合する{@link ConstructorDesc}を返します。
     *
     * @param args
     *            コンストラクタに渡す引数の並び

    def method(Map<String, ?> args, String name, ClassMetaData classMetaData) {
        MethodMetaData method = Mock()
        List<String> paramTypes = args.paramTypes ?: []
        _ * method.name >> name
        _ * method.overrideSignature >> "$name(${paramTypes.join(', ')})"
        _ * method.parameters >> paramTypes.collect {
            def param = new ParameterMetaData("p");
            param.type = new TypeMetaData(it)
            return param