support of conversationPropagation
right types for HttpServletRequest
impl ServletContext.getServerInfo
when using default http session try to find contextual listener for session.invalidate
avoid BusyConversationException issue in destroy request - we should do something more clever here surely enriching OWB API
avoid NPE
emptyMap is not mutable but we need it
support path as well in @Descriptors
seems idea didnt flush the whole data :(