// The producer state converter
StateConverter producerStateConverter = new ExoStateConverter();
// The producer portlet invoker
ProducerPortletInvoker producerPortletInvoker = new ProducerPortletInvoker();
producerPortletInvoker.setNext(containerPortletInvoker);
producerPortletInvoker.setPersistenceManager(producerPersistenceManager);
producerPortletInvoker.setStateManagementPolicy(producerStateManagementPolicy);
producerPortletInvoker.setStateConverter(producerStateConverter);
// register the producer portlet invoker if it hasn't been already
if (!federatingPortletInvoker.isResolved(PortletInvoker.LOCAL_PORTLET_INVOKER_ID)) {
federatingPortletInvoker.registerInvoker(PortletInvoker.LOCAL_PORTLET_INVOKER_ID, producerPortletInvoker);
}