Seam Concurrent call to conversation

[Tudor Raneti]

I'm having this problem:
i registered a phase event that triggers on render response phase,
and try to access a component on the conversation context like this:

public void afterPhase(PhaseEvent event)
    {
        System.out.println("After Phase->" + event.getPhaseId());
        EditDealBasePage editDealBasePage = (EditDealBasePage) Contexts.lookupInStatefulContexts("editDealBasePage");
        if(editDealBasePage == null)
            System.out.println("BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB");
        editDealBasePage.test();
        System.out.println("CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCccc");
    }

i got this error:

HTTP Status 503 - Concurrent call to conversation

--------------------------------------------------------------------------------

type Status report

message Concurrent call to conversation

description The requested service (Concurrent call to conversation) is not currently available.


--------------------------------------------------------------------------------

Apache Tomcat/6.0.20

Any thoughts?

EDIT:

  @Create
    @Observer(value="org.jboss.seam.afterPhase")
    public void test(PhaseEvent event){
        if(event.getPhaseId().equals(PhaseId.RENDER_RESPONSE)){
            System.out.println("AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAa");
            System.out.println("Is in @Observer");
        }
    }  

This doesn't work either.