Spring MVC: localization in controller

I want to send a localized email from my controller.

My localization is configured and working fine in my Thymeleaf tiles.

My configuration is as follows:

	...
	<!-- i18n -->
	<bean id="messageSource"
		class="org.springframework.context.support.ReloadableResourceBundleMessageSource">
		 <property name="basenames">
            <list>
                <value>classpath:messages</value>
                <value>classpath:cpcscorereport</value>
            </list>
        </property>
		<property name="defaultEncoding" value="UTF-8" />
	</bean>


<bean id="localeChangeInterceptor"
		class="org.springframework.web.servlet.i18n.LocaleChangeInterceptor">
		<property name="paramName" value="lang" />
	</bean> 
	
	
	<bean id="handlerMapping"
		class="org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping">
		<property name="interceptors">
			<ref bean="localeChangeInterceptor" />
		</property>
	</bean>


	<bean id="localeResolver"
		class="org.springframework.web.servlet.i18n.CookieLocaleResolver">
		<property name="defaultLocale" value="zh_CN" />
	</bean>

	...

</beans>

So theoretically I autowire message source into the controller as follows:

    @Autowired
private ReloadableResourceBundleMessageSource messageSource;

Then access the messages as follows:

        String message = messageSource.getMessage("report.title", null, LocaleContextHolder.getLocale());
        SSm.getLogger().debug("localized message:   "+message);

BUt I get the following exception at autowire

23-Feb-2017 18:19:06.969 SEVERE [http-nio-8080-exec-4] org.apache.catalina.core.StandardWrapperValve.invoke Allocate exception for servlet AssessmentDelivery org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [org.springframework.context.support.ReloadableResourceBundleMessageSource] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}

Why is it not picking up the autowired bean in the controller?

Any suggestions would be much appreciated.