session.setProperty("fooDate", date);
List<String> list = createList();
session.setProperty("fooList", list);
handler.storeSessionInfoToMessage(session, message);
// store save session to outbound, move it to the inbound
// for retrieve to deserialize
Object s = message.removeProperty(MuleProperties.MULE_SESSION_PROPERTY);
message.setInboundProperty(MuleProperties.MULE_SESSION_PROPERTY, s);
session = handler.retrieveSessionInfoFromMessage(message);