Can I propagate struts2 ActionErrors between different action classes?

Question

If I have an action where the result is a redirectAction to another action in a different class, is it possible to get validation errors to display in the resulting action? E.g. in the following example, if a user executes actionA (which has no views associated with it), and there are errors, is there any way to display those errors in the actionB result (foo.jsp)? Or am I going about this in completely the wrong way?

<package name="a" extends="struts-default" namespace="/a">
    <action name="actionA" class="actionAClass">
        <result name="input" type="redirectAction">
            <param name="actionName">actionB</param>
            <param name="namespace">/b</param>
        </result>
        <result type="redirectAction">
            <param name="actionName">actionB</param>
            <param name="namespace">/b</param>
        </result>
    </action>
</package>
<package name="b" extends="struts-default" namespace="/b">
    <action name="actionB" class="actionBClass">
        <result>/foo.jsp</result>
    </action>
</package>

Answer 1

Struts2 by default has a store interceptor. It stores the actionMessages, actionErrors and fieldErrors in session in STORE mode and you can retrieve the same in the next redirect by using the same interceptor by using it in RETRIEVE mode. More details can be found here