@Around("execution(* *(..)) && @annotation(Te)")
public Object setupParam(ProceedingJoinPoint pjp) throws Throwable {
    Object[] args = pjp.getArgs();
    MethodSignature signature = (MethodSignature) pjp.getSignature();
    Method method = signature.getMethod();
    Te myAnnotation = method.getAnnotation(Te.class);
    if (args != null)
        args[0] = (int) args[0] * myAnnotation.w();
    return pjp.proceed(args);
}