How to use Spring's Resource Bundle in a custom library tag?

Question

My Resource bundle is working fine with Controllers and Services etc, but somehow I can't access it within a custom tag.

<bean id="messageSource" class="org.springframework.context.support.ReloadableResourceBundleMessageSource">
    <property name="basename" value="classpath:/spring/messages" />
    <property name="defaultEncoding" value="UTF-8" />
</bean>

Here is a part of the tag:

@Component
public class FormSection extends BodyTagSupport {

private static final long serialVersionUID = 1L;

@Autowired
private ReloadableResourceBundleMessageSource messageSource;

@Override
public int doStartTag() throws JspException {

    try {

    // messageSource causes a NULL POINTER here
    messageSource.getMessage("name", null, new Locale("us")));

    return EVAL_BODY_INCLUDE;

}

I am getting a NullPointerException; Autowire doenst work. I can see my class is being scanned.

I also tried using applicationContext by implementing ApplicationContextAware but doenst work:

messageSource = (ReloadableResourceBundleMessageSource)applicationContext.getBean("messageSource");

Any help is welcome!