Hi,
I have a problem. This very easy code never joins a conversation. It always starts a new conversation. The only possible way not to create conversation is return null, but that's unfortunately not acceptable.

@Name("starter")
@Scope(ScopeType.CONVERSATION)
public class Starter {
        @Begin(join = true)
        public String shouldJoin() {
                System.out.println("whatever");
                return "anything";
        }
}
The call from menu.xhtml is this:
<s:link id="menuHoleId" view="/starter.xhtml" action="#{starter.shouldJoin()}" value="joiner"/>
The starter.xhtml is just empty page.
After each click to the link, one conversation is created and displayed below on the page with this code:
<h:form>
    <h:dataTable value="#{conversationEntries.conversationEntries.toArray()}" var="entry"
        rendered="#{not empty conversationEntries.conversationEntries.toArray()}">
    <h:column>
        <f:facet name="header">Workspace</f:facet>
        <h:commandLink action="#{entry.select}" value="#{entry.description}"/>
        <h:outputText value="[current]" rendered="#{entry.current}"/>
    </h:column>
    <h:column>
        <f:facet name="header">View</f:facet>
        <h:outputText value="#{entry.viewId}"/>
    </h:column>
    <h:column>
        <f:facet name="header">Id stack</f:facet>
        <h:outputText value="#{entry.conversationIdStack}"/>
    </h:column>
    <h:column>
        <f:facet name="header">long running?</f:facet>
        <h:outputText value="#{conversation.longRunning ? 'long running' : 'temporary'}"/>
    </h:column>
    <h:column>
        <f:facet name="header">Activity</f:facet>
        <h:outputText value="#{entry.startDatetime}">
            <s:convertDateTime type="time" pattern="hh:mm a"/>
        </h:outputText>
        <h:outputText value=" - "/>
        <h:outputText value="#{entry.lastDatetime}">
            <s:convertDateTime type="time" pattern="hh:mm a"/>
        </h:outputText>
    </h:column>
    <h:column>
        <f:facet name="header">Action</f:facet>
        <h:commandButton action="#{entry.select}" value="Switch"/>
        <h:commandButton action="#{entry.destroy}" value="Destroy"/>
    </h:column>
</h:dataTable>
</h:form>

Can anyone explain me, what's happening and why the conversation is not joined? This code is shown everywhere, I just can't believe it's wrong and it doesn't work, but I cannot find what I do wrong...
Thanks a lot
Uwe