private static boolean isApplicable(Method method, Class<?>... classes) {
        Class<?>[] methodArgs = method.getParameterTypes();

        if (methodArgs.length != classes.length) {
            return false;
        }

        for (int i = 0; i < classes.length; ++i) {
            if (!isMethodInvocationConvertible(methodArgs[i], classes[i])) {
                return false;
            }
        }

     * @param methodArgs
     *            引数の並び
     * @return シグニチャの文字列表現
     */
    public static String getSignature(final String methodName, final Object... methodArgs) {
        assertArgumentNotEmpty("methodName", methodName);

        final StringBuilder buf = new StringBuilder(100);
        buf.append(methodName).append("(");
        if (methodArgs != null && methodArgs.length > 0) {