How to register handler interceptors with spring mvc 3.0?

It should be easy:

<bean id="handlerMapping"
   class="org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping">
    <property name="interceptors">
        <list>
            <ref bean="myInterceptor" />
        </list>
    </property>
</bean>

but this way the interceptor isn't called.