<action name="logout" ... >
<intereptor-ref name="sessionInvalidate">
<param name="type">Now</param>
</interceptor-ref>
....
</action>
or
<action name="sayByeByeNextRequestWillHaveSessionLost" ... >
<interceptor-ref name="sessionInvalidate">
<param name="type"<NextRequest</param>
</interceptor-ref>
....
</action>
<!-- This is the next request, "sessionInvalidate" will find the marker inserted
by the action above and invalidate the session -->
<!-- The type="NoOperation" is just there so that the type is a valid one, and
we don't get a warning log meessage -->
<action name="nextRequest" ... >
<interceptor-ref name="sessionInvalidate">
<param name="type">NoOperation</param>
</interceptor-ref>
...
</action>