}
        return (T) arg;
    }

    private Object convertPrimitiveWrapper(final Object arg) {
        return NumberConversionUtil.convertPrimitiveWrapper(propertyType, arg);
    }

    private Object convertNumber(final Object arg) {
        return NumberConversionUtil.convertNumber(propertyType, arg);
    }

    private Object convertDate(final Object arg) {
        if (propertyType == java.util.Date.class) {

         */
        public int add2(final int arg1, final int arg2) {
            return arg1 + arg2;
        }

        /**
         * @param arg
         * @return Integer
         */
        public Integer echo(final Integer arg) {
            return arg;
        }

        /**
         *
         */
        public void throwException() {
            throw new IllegalStateException("hoge");

        if (methodArgs == null || methodArgs.length == 0) {
            return "";
        }
        final StringBuilder buf = new StringBuilder(100);
        for (final Object arg : methodArgs) {
            if (arg != null) {
                buf.append(arg.getClass().getName());
            } else {
                buf.append("null");
            }
            buf.append(", ");
        }

        /**
         * @return String
         */
        public String foo() {
            return "hoge";
        }

        /**
         * @param arg
         * @return String
         */
        public static String bar(final String arg) {
            return arg;
        }
    }

        final StringBuilder buf = new StringBuilder(100);
        buf.append(methodName).append("(");
        if (methodArgs != null && methodArgs.length > 0) {
            for (final Object arg : methodArgs) {
                buf.append(arg == null ? null : arg.getClass().getName()).append(", ");
            }
            buf.setLength(buf.length() - 2);
        }
        buf.append(")");
        return buf.toString();
    }

        if (args == null || args.length == 0) {
            return "";
        }
        final StringBuilder buffer = new StringBuilder();
        for (final Object arg : args) {
            buffer.append(arg + ", ");
        }
        buffer.setLength(buffer.length() - ", ".length());
        return new String(buffer);
    }

    /**
     * 初期化します。
     */