@Resource annotation not used with beans defined by id

There seems to be a problem with the spring interaction.

Consider the following scenario :

A action class using the @Resource annotation :
public class ListValuableAction {
@Resource
private StockManager stockManager;

They are mapped in the applicationContext.xml as beans :
<bean id="listValuableAction" scope="prototype" class="gestion.view.actions.ListValuableAction"/>
<bean id="stockManager" class="capitalism.dao.StockManager"/>

In the struts.xml I have:
<action name="*" class="capitalism.view.actions.

{1}Action" >
<result>/WEB-INF/views/{1}

.jsp</result>
</action>

<action name="toto" class="listValuableAction" >
<result>/WEB-INF/views/ListValuable.jsp</result>
</action>

The first action works fine, the stockManager bean is set in the ListValuableAction instance.
The second does not work. The stockManager bean is NOT set in the ListValuableAction instance.

I try to play with scope="prototype", removing it. Does the same.
My unit tests complete fine using the bean listValuableAction, the stockManager field is always set, so i'm quite sure is not a problem with Spring.

If I inject in the applicationContext.xml :
<bean id="listValuableAction" scope="prototype" class="capitalism.view.actions.ListValuableAction">
<property name="stockManager" ref="stockManager"/>
</bean>
it works.

In conclusion the problem arise only when using a bean declared by id which use the @Resource annotation.
Using @Resource in a bean declared by class name works.
Using a bean declared by id which injections are in the applicationContext.xml works.

Hope it helps.

PS : Sorry if my English is a little poor.