using the JMS Receiver transformer with the Sorter transformer

I am having an issue using the sorting transformer with the JMSReceiver transformer. What i have going on is i get that i get information from a JMS Queue in XML i am then fragmenting the xml into a list attributes, then exploding each list into features with its asscoiated attributes from its list. Then i convert the date attribute into seconds and use a sorter to sort the features descending by seconds. But the problem is that I have features going into the sorter, but nothing coming out of it....this does work when reading in a file using a reader, but does not work properly with the JMSReceiver message streaming transformer. What i think is going on, is that the sorter is waiting for all of the features to get there, but with the JMSReceiver it is constantly polling for new messages so i dont think "all" of the features ever get to the sorter even though a message has been received.